@article{UBHD-67440296,
  author={Abdo, Aous A. and Heidt, Jochen},
  title={A change in the optical polarization associated with a γ-ray flare in the blazar 3C279},
  year={2010},
  pages={919-923},
  language={eng},
  issn={1476-4687},
  volume={463},
  number={7283},
  note={Gesehen am 04.07.2013},
  journal={Nature},
  doi={10.1038/nature08841},
}
@article{UBHD-67432291,
  author={Abdo, Aous A. and Hauser, Marcus and Heidt, Jochen and Wagner, Stefan},
  title={Multi-wavelength observations of the flaring gamma-ray blazar 3C 66A in 2008 October},
  year={2011},
  pages={43ff},
  language={eng},
  issn={1538-4357},
  volume={726},
  number={1},
  note={Gesehen am 18.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/726/1/43},
}
@article{UBHD-67436513,
  author={Abdo, Aous A. and Heidt, Jochen},
  title={The spectral energy distribution of fermi bright blazars},
  year={2010},
  pages={30-70},
  language={eng},
  issn={1538-4357},
  volume={716},
  number={1},
  note={Gesehen am 26.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/716/1/30},
}
@article{UBHD-67443339,
  author={Acciari, V. A. and Heidt, Jochen and Mommert, Michael},
  title={Multiwavelength observations of a TeV-flare from W Comae},
  year={2009},
  pages={612-620},
  language={eng},
  issn={1538-4357},
  volume={707},
  number={1},
  note={Gesehen am 10.07.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/707/1/612},
}
@article{UBHD-67425300,
  author={Ackermann, Markus and Heidt, Jochen},
  title={Multi-wavelength observations of Blazar AO 0235+164 in the 2008 - 2009 flaring state},
  year={2012},
  pages={A159},
  language={eng},
  issn={1538-4357},
  volume={751},
  number={2},
  note={Gesehen am 07.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/751/2/159},
}
@incollection{UBHD-68003903,
  author={Agudo, Iván and Heidt, Jochen},
  title={Gamma-ray flaring emission in blazar OJ287 located in the jet >14 pc from the black hole},
  year={2011},
  pages={?},
  language={eng},
  note={Gesehen am 06.07.2016},
  booktitle={De.arxiv.org},
}
@incollection{UBHD-67963144,
  author={Agudo, Iván and Heidt, Jochen},
  title={Locating the gamma-ray rlaring emission of Blazar AO 0235+164 in the jet at parsec scales through multi spectral range monitoring},
  year={2013},
  pages={?},
  language={eng},
  note={Gesehen am 04.04.2016},
  booktitle={De.arxiv.org},
}
@incollection{UBHD-67966761,
  author={Agudo, Iván and Heidt, Jochen},
  title={Locating the gamma-ray flaring emission of blazar AO 0235+164 in the jet at parsec scales through multi spectral range monitoring},
  year={2013},
  pages={?},
  language={eng},
  note={Gesehen am 13.04.2016},
  booktitle={De.arxiv.org},
}
@article{UBHD-67432292,
  author={Agudo, Iván and Heidt, Jochen},
  title={Location of γ-ray flare emission in the jet of the BL Lacertae Object OJ287 more than 14 pc from the central engine},
  year={2011},
  pages={L13},
  language={eng},
  issn={2041-8213},
  volume={726},
  number={1},
  note={Gesehen am 18.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/2041-8205/726/1/L13},
}
@article{UBHD-68002798,
  author={Agudo, Iván and Heidt, Jochen},
  title={Location of the gamma-ray flaring emission in the parse-scale fet of the BL lac object AO 0235+164},
  year={2012},
  pages={271-276},
  language={eng},
  issn={2010-1945},
  volume={8},
  note={Gesehen am 04.07.2016},
  journal={International journal of modern physics},
  doi={10.1142/S2010194512004709},
}
@article{UBHD-68002796,
  author={Agudo, Iván and Heidt, Jochen},
  title={MAPCAT},
  subtitle={Monitoring AGN with Polarimetry at the Calar Alto Telescopes},
  year={2012},
  pages={299-302},
  language={eng},
  issn={2010-1945},
  volume={8},
  note={Gesehen am 04.07.2016},
  journal={International journal of modern physics},
  doi={10.1142/S2010194512004746},
}
@article{UBHD-67430499,
  author={Agudo, Iván and Heidt, Jochen},
  title={On the location of the γ-ray outburst emission in the BL lacertae object AO 0235+164 through observations across the electromagnetic spectrum},
  year={2011},
  pages={L10},
  language={eng},
  issn={2041-8213},
  volume={735},
  number={1},
  note={Gesehen am 14.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/2041-8205/735/1/L10},
}
@conference{UBHD-67963149,
  author={Agudo, Iván and Heidt, Jochen},
  title={γ-ray emission region located in the parsec scale jet of OJ287},
  year={2012},
  language={eng},
  issn={1742-6596},
  doi={10.1088/1742-6596/355/1/012032},
}
@article{UBHD-67901420,
  author={Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan and Tapken, Christian},
  title={Exploring cosmic evolution with the FORS deep field},
  year={2004},
  pages={18-24},
  language={eng},
  issn={0026-0363 and 0722-6691},
  volume={116},
  number={?},
  journal={The messenger / ESO, European Southern Observatory},
}
@article{UBHD-67901421,
  author={Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan and Tapken, Christian},
  title={Exploring cosmic evolution with the FORS deep field},
  year={2004},
  pages={18-24},
  language={eng},
  volume={116},
  number={?},
  note={Gesehen am 12.11.2015},
  journal={The ESO messenger},
}
@article{UBHD-67911404,
  author={Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and M{\"o}llenhoff, Claus and Noll, Stefan and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas and Wagner, Stefan},
  title={The FORS deep field},
  year={2000},
  pages={44-48},
  language={eng},
  volume={100},
  journal={The ESO messenger},
}
@article{UBHD-67911405,
  author={Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and M{\"o}llenhoff, Claus and Noll, Stefan and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas and Wagner, Stefan},
  title={The FORS deep field},
  year={2000},
  pages={44-48},
  language={eng},
  issn={0026-0363 and 0722-6691},
  volume={100},
  journal={The messenger / ESO, European Southern Observatory},
}
@conference{UBHD-67911410,
  author={Appenzeller, Immo and Dietrich, Matthias and F{\"u}rtig, Walter and Heidt, Jochen and K{\"u}mmel, Martin W. and Mehlert, D{\"o}rte and M{\"o}llenhoff, Claus and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas},
  title={Science with FORS},
  year={2000},
  pages={3-11},
  language={eng},
  isbn={3-540-67163-3 and 978-3-540-67163-3},
}
@conference{UBHD-67909356,
  author={Bender, Ralf and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas and Wagner, Stefan},
  title={The FORS deep field},
  subtitle={photometric data and photometric redshifts},
  year={2001},
  pages={96-101},
  language={eng},
  isbn={3-540-42799-6 and 978-3-540-42799-5},
}
@article{UBHD-68011624,
  author={Benítez, Erika and Heidt, Jochen},
  title={The close environment of OJ 287},
  subtitle={underlying nebulosity and a possible optical jet?},
  year={1996},
  pages={L47-L50},
  language={eng},
  issn={2041-8213},
  volume={464},
  note={Gesehen am 27.07.2016},
  journal={The astrophysical journal},
}
@article{UBHD-68003929,
  author={Berger, Janna-Lena and Heidt, Jochen and Germeroth, André},
  title={NIR-imaging of SDSS BL Lac objects},
  year={2007},
  pages={673},
  language={eng},
  issn={0004-6337},
  volume={328},
  number={7},
  journal={Astronomical notes},
}
@conference{UBHD-68021249,
  author={Blécha, André B. and Heidt, Jochen and Wagner, Stefan},
  title={Ground-based observations of PKS 2155-304 in November 1991},
  year={1994},
  pages={319},
  language={eng},
  isbn={0-7923-2745-4 and 0-7923-2744-6 and 978-0-7923-2745-5 and 978-0-7923-2744-8},
}
@article{UBHD-68008063,
  author={B{\"o}hm, Asmus and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan},
  title={The Tully-Fisher relation at intermediate redshift},
  year={2004},
  pages={97-114},
  language={eng},
  issn={1432-0746},
  volume={420},
  note={Gesehen am 15.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20034256},
}
@article{UBHD-67449295,
  author={B{\"o}ttcher, Markus and Heidt, Jochen},
  title={The whole earth blazar telescope campaign on the intermediate BL Lac object 3C 66A in 2007 - 2008},
  year={2009},
  pages={174-182},
  language={eng},
  issn={1538-4357},
  volume={694},
  number={1},
  note={Gesehen am 23.07.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/694/1/174},
}
@incollection{UBHD-68010688,
  author={Castro-Tirado, Alberto J. and Heidt, Jochen},
  title={The GRB 970111 error box 19-hours after the high energy event},
  year={1997},
  pages={1516},
  language={eng},
  isbn={1-56396-659-X and 978-1-56396-659-0},
  note={Gesehen am 25.07.2016},
  booktitle={Proceedings of the Fourth Compton Symposium},
  editor={Dermer, Charles},
  doi={10.1063/1.54044},
}
@article{UBHD-68009852,
  author={Castro-Tirado, Alberto J. and Heidt, Jochen},
  title={The optical/IR counterpart of the 3 July 1998 gamma-ray burst and its evolution},
  year={1999},
  pages={L85-L88},
  language={eng},
  issn={2041-8213},
  volume={511},
  number={2},
  note={Gesehen am 15.06.2016},
  journal={The astrophysical journal},
  doi={10.1086/311846},
}
@article{UBHD-67932248,
  author={Courvoisier, Thierry J.-L. and Heidt, Jochen and Wagner, Stefan},
  title={Multiwavelength monitoring of the BL Lacertae object PKS 2155-304},
  subtitle={III.Ground-based observations in 1991 November},
  year={1995},
  pages={108-119},
  language={eng},
  volume={438},
  number={1},
  journal={The astrophysical journal},
}
@article{UBHD-67442615,
  author={D'Ammando, Filippo and Heidt, Jochen and Mommert, Michael},
  title={AGILE detection of a rapid γ-ray flare from the blazar PKS 1510-089 during the GASP-WEBT monitoring},
  year={2009},
  pages={181-189},
  language={eng},
  issn={1432-0746},
  volume={508},
  number={1},
  note={Gesehen am 09.07.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/200912560},
}
@article{UBHD-67430523,
  author={D'Ammando, Filippo and Heidt, Jochen},
  title={AGILE detection of extreme γ-ray activity from the blazar PKS 1510-089 during march 2009},
  subtitle={Multifrequency analysis},
  year={2011},
  pages={A145},
  language={eng},
  issn={1432-0746},
  volume={529},
  note={Gesehen am 14.06.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201016128},
}
@incollection{UBHD-67923118,
  author={Dietrich, Matthias and Appenzeller, Immo and Heidt, Jochen and Wagner, Stefan},
  title={Elemental abundances in the broad emission line region of quasars at redshifts larger than 4},
  year={2002},
  pages={?},
  language={eng},
  note={Gesehen am 11.01.2016},
  booktitle={De.arxiv.org},
}
@article{UBHD-67901934,
  author={Dietrich, Matthias and Appenzeller, Immo and Heidt, Jochen and Wagner, Stefan},
  title={Elemental abundances in the broad emission line regions of quasars at redshifts larger than 4},
  year={2003},
  pages={891-899},
  language={eng},
  issn={1432-0746},
  volume={398},
  number={3},
  note={Gesehen am 13.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20021697},
}
@article{UBHD-67928310,
  author={Dietrich, Matthias and Heidt, Jochen and Wagner, Stefan},
  title={Quasar elemental abundances at high redshifts},
  year={2003},
  pages={722-732},
  language={eng},
  issn={1538-4357},
  volume={589},
  note={Gesehen am 21.01.2016},
  journal={The astrophysical journal},
}
@conference{UBHD-68012055,
  author={D{\"o}bereiner, Stefan and Heidt, Jochen and Wagner, Stefan},
  title={Emission line regions in M86},
  year={1996},
  pages={364},
  language={eng},
  isbn={0-7923-3975-4 and 0-7923-3976-2 and 978-0-7923-3975-5 and 978-0-7923-3976-2},
}
@article{UBHD-68021254,
  author={D{\"o}bereiner, Stefan and B{\"o}hringer, Hans and Heidt, Jochen},
  title={ROSAT PSPC observations of M86},
  year={1993},
  pages={23},
  language={eng},
  volume={8},
  note={Gesehen am 24.08.2016},
  journal={Abstract series},
}
@article{UBHD-67928309,
  author={Edelson, Rick A. and Wagner, Stefan and Heidt, Jochen},
  title={Multiwavelength monitoring of the BL Lacertae object PKS 2155-304},
  subtitle={IV. Multiwavelength analysis},
  year={1995},
  pages={120-134},
  language={eng},
  volume={438},
  number={1},
  note={Gesehen am 21.01.2016},
  journal={The astrophysical journal},
}
@article{UBHD-68010691,
  author={Falomo, Renato and Heidt, Jochen},
  title={On the galaxy surrounding the BL Lacertae object MS 0205.7+3509},
  year={1997},
  pages={374-378},
  language={eng},
  issn={1432-0746},
  volume={321},
  note={Gesehen am 25.07.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68010697,
  author={Fried, Josef Wilhelm and Heidt, Jochen},
  title={Host galaxies of radio-loud AGN},
  year={1997},
  pages={215},
  language={eng},
  isbn={3-540-63793-1 and 978-3-540-63793-6},
}
@article{UBHD-68009872,
  author={Fuchs, Burkhard and M{\"o}llenhoff, Claus and Heidt, Jochen},
  title={Decomposition of the rotation curves of distant field galaxies},
  year={1998},
  pages={878-882},
  language={eng},
  issn={1432-0746},
  volume={336},
  note={Gesehen am 21.07.2016},
  journal={Astronomy and astrophysics},
}
@article{UBHD-67901418,
  author={Gabasch, Armin and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan},
  title={The evolution of the luminosity functions in the FORS deep field from low to high redshift},
  subtitle={I. The blue bands},
  year={2004},
  pages={41-58},
  language={eng},
  issn={1432-0746},
  volume={421},
  number={1},
  note={Gesehen am 12.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20035909},
}
@conference{UBHD-67923109,
  author={Gabasch, Armin and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan},
  title={Evolution of the galaxy luminosity function in the FORS Deep Field},
  year={2004},
  pages={39-42},
  language={eng},
  isbn={1-4020-1971-8 and 978-1-4020-1971-5},
}
@article{UBHD-67901388,
  author={Gabasch, Armin and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte},
  title={The evolution of the luminosity functions in the FORS deep field from low to high redshift},
  subtitle={II. The red bands},
  year={2006},
  pages={101-121},
  language={eng},
  issn={1432-0746},
  volume={448},
  number={1},
  note={Gesehen am 12.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20053986},
}
@article{UBHD-67891227,
  author={Germeroth, André and Heidt, Jochen and Mandel, Holger and Seifert, Walter},
  title={LUCIFER and its Exposure-time-calculator},
  year={2007},
  pages={630},
  language={eng},
  issn={0004-6337},
  volume={328},
  number={7},
  journal={Astronomical notes},
}
@article{UBHD-68003932,
  author={Germeroth, André and Heidt, Jochen and Krabbenh{\"o}ft, André},
  title={On the cluster environment of the BL lac object OJ 287},
  year={2007},
  pages={672},
  language={eng},
  issn={0004-6337},
  volume={328},
  number={7},
  journal={Astronomical notes},
}
@article{UBHD-68009868,
  author={Gorosabel, Javier and Heidt, Jochen},
  title={An optical study of the GRB 970111 field beginning 19 hours after the Gamma-ray burst},
  year={1998},
  pages={719-728},
  language={eng},
  issn={1432-0746},
  volume={339},
  note={Gesehen am 21.07.2016},
  journal={Astronomy and astrophysics},
}
@article{UBHD-68009459,
  author={Hartman, Richard C. and Heidt, Jochen},
  title={The 3C 279 campaign of winter 1999},
  subtitle={a gamma-optical correlation?},
  year={2001},
  pages={141-142},
  language={eng},
  issn={0037-8720},
  volume={72},
  number={1},
  note={Gesehen am 20.07.2016},
  journal={Memorie della Società Astronomica Italiana},
}
@article{UBHD-67930162,
  author={Hartman, Robert C. and Heidt, Jochen and Wagner, Stefan},
  title={Day-Scale variability of 3C 279 and searches for correlations in gamma-ray, x-ray, and optical bands},
  year={2001},
  pages={583-589},
  language={eng},
  issn={1538-4357},
  volume={558},
  number={2},
  journal={The astrophysical journal},
  doi={10.1086/322462},
}
@article{UBHD-67926141,
  author={Hartman, Robert C. and Heidt, Jochen and Wagner, Stefan},
  title={Multiepoch multiwavelength spectra and models for Blazar 3C 279},
  year={2001},
  pages={683-694},
  language={eng},
  issn={1538-4357},
  volume={553},
  number={2},
  note={Gesehen am 18.01.2016},
  journal={The astrophysical journal},
}
@conference{UBHD-68009839,
  author={Hartman, Robert C. and Heidt, Jochen and Wagner, Stefan},
  title={A possible optical/Gamma-ray short-term correlation in 3C 279},
  year={2001},
  pages={249},
  language={eng},
  isbn={1-58381-055-2 and 978-1-58381-055-2},
}
@article{UBHD-67425296,
  author={Hayashida, Masaaki and Heidt, Jochen},
  title={The structure and emission model of the relativistic jet in the Quasar 3C 279 inferred from radio to high-energy γ-ray observations in 2008 - 2010},
  year={2012},
  pages={114ff},
  language={eng},
  issn={1538-4357},
  volume={754},
  number={2},
  note={Gesehen am 07.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/754/2/114},
}
@article{UBHD-68447621,
  author={Heidt, Jochen and Quirrenbach, Andreas and Hoyer, Nina and Pramskiy, Alexander and Seifert, Walter},
  title={3C 294 revisited},
  subtitle={deep large binocular telescope AO NIR images and optical spectroscopy},
  year={2019},
  pages={9 S.},
  language={eng},
  issn={1432-0746},
  volume={628(2019) Artikel-Nummer A28},
  number={9 Seiten},
  note={Gesehen am 29.10.2019},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201935892},
}
@conference{UBHD-68009840,
  author={Heidt, Jochen},
  title={The BL Lac object PKS 0537-441},
  subtitle={a lense or being lensed?},
  year={2001},
  pages={?},
  language={eng},
}
@conference{UBHD-68009420,
  author={Heidt, Jochen},
  title={The BL lac object PKS 0537-441},
  subtitle={a lens or being lensed?},
  year={2003},
  pages={293},
  language={eng},
  isbn={1-58381-146-X and 978-1-58381-146-7},
}
@conference{UBHD-68009426,
  author={Heidt, Jochen},
  title={The BL Lac object PKS 0537-441},
  subtitle={a lens or being lensed?},
  year={2003},
  pages={117-120},
  language={eng},
  issn={1001-7526},
}
@conference{UBHD-68007583,
  author={Heidt, Jochen},
  title={Evolution of BL Lac host galaxies},
  year={2004},
  pages={521-522},
  language={eng},
  issn={1743-9221},
  note={Gesehen am 14.07.2016},
  doi={10.1017/S1743921304003102},
}
@conference{UBHD-68007584,
  author={Heidt, Jochen},
  title={Evolution of BL Lac host galaxies},
  year={2004},
  pages={521-522},
  language={eng},
  isbn={0-521-84803-2 and 978-0-521-84803-9},
}
@article{UBHD-68008064,
  author={Heidt, Jochen},
  title={Evolution of BL Lacertae host galaxies},
  year={2004},
  pages={813-825},
  language={eng},
  issn={1432-0746},
  volume={418},
  number={3},
  note={Gesehen am 15.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20034467},
}
@incollection{UBHD-67908798,
  author={Heidt, Jochen and Appenzeller, Immo and Seifert, Walter and Stahl, Otmar and Wagner, Stefan},
  title={The FORS deep field},
  year={2001},
  pages={209-222},
  language={eng},
  booktitle={Dynamic stability and instabilities in the universe},
  editor={Schielicke, Reinhard E.},
}
@conference{UBHD-67908799,
  author={Heidt, Jochen and Appenzeller, Immo and Seifert, Walter and Stahl, Otmar and Wagner, Stefan},
  title={The FORS deep field},
  year={2001},
  pages={209-222},
  language={eng},
  isbn={3-9805176-4-0 and 978-3-9805176-4-5},
}
@article{UBHD-68009449,
  author={Heidt, Jochen and Jaeger, Klaus},
  title={Das FORS Deep Field},
  subtitle={ein tiefer Blick ins Universum},
  year={2001},
  pages={330-334},
  language={ger},
  issn={0039-1263},
  volume={40},
  number={4/5},
  journal={Sterne und Weltraum},
}
@article{UBHD-67901940,
  author={Heidt, Jochen and Appenzeller, Immo},
  title={The FORS deep field},
  subtitle={Photometry, photometric redshifts and first spectroscopic results},
  year={2002},
  pages={539-540},
  language={eng},
  issn={1572-946X},
  volume={281},
  number={1},
  note={Gesehen am 13.11.2015},
  journal={Astrophysics and space science},
  doi={10.1023/A:1019587329235},
}
@article{UBHD-67901941,
  author={Heidt, Jochen and Appenzeller, Immo},
  title={The FORS deep field},
  subtitle={Photometry, photometric redshifts and first spectroscopic results},
  year={2002},
  pages={539-540},
  language={eng},
  issn={0004-640X},
  volume={281},
  number={1},
  journal={Astrophysics and space science},
}
@article{UBHD-67901925,
  author={Heidt, Jochen and Appenzeller, Immo},
  title={The FORS deep field},
  subtitle={the photometric catalog},
  year={2003},
  pages={385-388},
  language={eng},
  issn={1572-946X},
  volume={284},
  number={2},
  note={Gesehen am 13.11.2015},
  journal={Astrophysics and space science},
  doi={10.1023/A:1024054816114},
}
@article{UBHD-67901926,
  author={Heidt, Jochen and Appenzeller, Immo},
  title={The FORS deep field},
  subtitle={the photometric catalog},
  year={2003},
  pages={385-388},
  language={eng},
  issn={0004-640X},
  volume={284},
  number={2},
  journal={Astrophysics and space science},
}
@article{UBHD-67901937,
  author={Heidt, Jochen and Appenzeller, Immo and M{\"o}llenhoff, Claus and Szeifert, Thomas and Mehlert, D{\"o}rte and Noll, Stefan and Seifert, Walter and Stahl, Otmar and Wagner, Stefan},
  title={The FORS deep field},
  subtitle={Field selection, photometric observations and photometric catalog},
  year={2003},
  pages={49-61},
  language={eng},
  issn={1432-0746},
  volume={398},
  number={1},
  note={Gesehen am 13.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20021620},
}
@conference{UBHD-68012054,
  author={Heidt, Jochen},
  title={High-resolution imaging of BL LAC host galaxies},
  year={1996},
  pages={389},
  language={eng},
  isbn={0-7923-3975-4 and 0-7923-3976-2 and 978-0-7923-3975-5 and 978-0-7923-3976-2},
}
@conference{UBHD-68009877,
  author={Heidt, Jochen},
  title={High-resolution imaging of EINSTEIN Slew Survey BL Lacertae objects},
  year={1998},
  pages={62},
  language={eng},
}
@conference{UBHD-68009848,
  author={Heidt, Jochen},
  title={High-resolution imaging of blazars detected by EGRET},
  year={1999},
  pages={59-62},
  language={eng},
}
@article{UBHD-68009855,
  author={Heidt, Jochen},
  title={High-resolution imaging of Einstein Slew Survey BL Lacertae objects},
  year={1999},
  pages={683-692},
  language={eng},
  issn={1432-0746},
  volume={341},
  note={Gesehen am 21.07.2016},
  journal={Astronomy and astrophysics},
}
@incollection{UBHD-68009863,
  author={Heidt, Jochen},
  title={Host galaxies and environment of BL Lac objects},
  year={1998},
  pages={?},
  language={eng},
  note={Gesehen am 21.07.2016},
  booktitle={De.arxiv.org},
}
@incollection{UBHD-68009860,
  author={Heidt, Jochen},
  title={Host galaxies and Environments of BL Lac Objects},
  year={1999},
  pages={367},
  language={eng},
  isbn={1-886733-79-1 and 978-1-886733-79-4},
  booktitle={BL Lac phenomenon},
  editor={Takalo, Leo O. and Sillanp{\"a}{\"a}, Aimo},
}
@conference{UBHD-68009456,
  author={Heidt, Jochen and Sutorius, Eckhard},
  title={Host galaxies and cluster environment of BL Lac objects at z > 0.5},
  year={2001},
  pages={39},
  language={eng},
  isbn={0-306-46662-7 and 978-0-306-46662-5},
}
@article{UBHD-68007578,
  author={Heidt, Jochen},
  title={Hunting for radio-quiet BL Lacs},
  subtitle={the 2dF BL Lac survey},
  year={2005},
  pages={543},
  language={eng},
  issn={0004-6337},
  volume={326},
  journal={Astronomical notes},
}
@article{UBHD-68009850,
  author={Heidt, Jochen},
  title={IES 1741+196},
  subtitle={a BL Lacertae object in a triplet of interacting galaxies?},
  year={1999},
  pages={113-116},
  language={eng},
  issn={1432-0746},
  volume={348},
  note={Gesehen am 21.07.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68011643,
  author={Heidt, Jochen},
  title={Intraday variability statistics of radio-selected and X-ray selected BL Lac objects},
  year={1996},
  pages={246-247},
  language={eng},
  isbn={0-7923-4122-8 and 0-7923-4121-X and 978-0-7923-4122-2 and 978-0-7923-4121-5},
}
@conference{UBHD-68012059,
  author={Heidt, Jochen},
  title={Intraday variability statistics of BL Lac objects in the optical domain},
  year={1996},
  pages={64-69},
  language={eng},
  isbn={1-886733-30-9 and 978-1-886733-30-5},
}
@article{UBHD-67932252,
  author={Heidt, Jochen and Wagner, Stefan},
  title={Intraday variability in X-ray selected BL Lacertae objects},
  year={1998},
  pages={853-862},
  language={eng},
  issn={1432-0746},
  volume={329},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68011637,
  author={Heidt, Jochen},
  title={Near-IR and optical imaging of OJ 287},
  year={1996},
  pages={86},
  language={eng},
  isbn={951-29-0642-2 and 978-951-29-0642-0},
}
@conference{UBHD-68010698,
  author={Heidt, Jochen},
  title={Near-IR imaging of BL lac host galaxies},
  year={1997},
  pages={200},
  language={eng},
  isbn={3-540-63793-1 and 978-3-540-63793-6},
}
@book{UBHD-35001066,
  author={Heidt, Jochen},
  title={N-K{\"o}rper-Simulationen zum Energie{\"u}bertrag bei Begegnungen von Galaxien; Zweierst{\"o}ße von Plummermodellen},
  year={1988},
  pages={48 S.},
  language={ger},
  school={Heidelberg, Univ., Diss., 1988},
}
@article{UBHD-67912252,
  author={Heidt, Jochen and Appenzeller, Immo and Seifert, Walter and Szeifert, Thomas and Stahl, Otmar},
  title={Observations of the host galaxies of the BL Lacertae objects H 0414+009 and OJ 287 with FORS1 at VLT−UT1},
  year={1999},
  pages={L11-L16},
  language={eng},
  issn={0004-6361},
  volume={352},
  journal={Astronomy & astrophysics},
}
@article{UBHD-67912253,
  author={Heidt, Jochen and Appenzeller, Immo and Seifert, Walter and Szeifert, Thomas and Stahl, Otmar},
  title={Observations of the host galaxies of the BL Lacertae objects H 0414+009 and OJ 287 with FORS1 at VLT−UT1},
  year={1999},
  pages={L11-L16},
  language={eng},
  issn={1432-0746},
  volume={352},
  journal={Astronomy and astrophysics},
}
@article{UBHD-67939401,
  author={Heidt, Jochen and Wagner, Stefan and Erkens, Ulrike},
  title={Optical and UV observations of the BL Lacertae object PKS 2155-304},
  year={1997},
  pages={27-32},
  language={eng},
  issn={1432-0746},
  volume={325},
  note={Gesehen am 10.02.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68021247,
  author={Heidt, Jochen},
  title={Optical microvariability in complete samples of BL Lac objects},
  year={1994},
  pages={393},
  language={eng},
  isbn={0-7923-2745-4 and 0-7923-2744-6 and 978-0-7923-2745-5 and 978-0-7923-2744-8},
}
@article{UBHD-68021256,
  author={Heidt, Jochen and Wagner, Stefan and Erkens, Ulrike},
  title={Optical monitoring of southern BL Lac-objects},
  year={1991},
  pages={105},
  language={eng},
  volume={6},
  note={Gesehen am 24.08.2016},
  journal={Abstract series},
}
@article{UBHD-67431337,
  author={Heidt, Jochen and Nilsson, Karl},
  title={Polarimetry of optically selected BL Lacertae candidates from the SDSS},
  year={2011},
  pages={A162},
  language={eng},
  issn={1432-0746},
  volume={529},
  note={Gesehen am 17.06.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201116541},
}
@article{UBHD-68011621,
  author={Heidt, Jochen},
  title={Possible absorbing systems towards the BL Lacertae object PKS 0139-097},
  year={1996},
  pages={L13-L16},
  language={eng},
  issn={1432-0746},
  volume={312},
  note={Gesehen am 27.07.2016},
  journal={Astronomy and astrophysics},
}
@article{UBHD-68007586,
  author={Heidt, Jochen and Jaeger, Klaus},
  title={The QSO HE1013-2136 (z~0.785)},
  subtitle={tracing the ULIRG-QSO connection towards large look-back times},
  year={2004},
  pages={59},
  language={eng},
  issn={0004-6337},
  volume={325},
  number={Supplement 1},
  journal={Astronomische Nachrichten},
}
@article{UBHD-68021229,
  author={Heidt, Jochen and Jaeger, Klaus},
  title={The QSO HE1013-2136 (z~0.785)},
  subtitle={tracing the ULIRG-QSO connection towards large look-back times},
  year={2004},
  pages={59},
  language={eng},
  issn={1521-3994},
  volume={325},
  number={Supplement 1},
  note={Gesehen am 24.08.2016},
  journal={Astronomische Nachrichten},
}
@article{UBHD-68011618,
  author={Heidt, Jochen and Jaeger, Klaus and Dietrich, Matthias},
  title={The QSO HE1013-2136 (z = 0.785)},
  subtitle={tracing the ULIRG-QSO connection towards large look-back times?},
  year={2006},
  pages={762-765},
  language={eng},
  issn={1387-6473},
  volume={50},
  number={9/10},
  journal={New astronomy reviews},
}
@article{UBHD-68007073,
  author={Heidt, Jochen and Jaeger, Klaus and Dietrich, Matthias},
  title={The QSO HE1013-2136 (z = 0.785)},
  subtitle={tracing the ULIRG-QSO connection towards large look-back times?},
  year={2006},
  pages={762-765},
  language={eng},
  issn={1387-6473},
  volume={50},
  number={9/10},
  note={Gesehen am 13.07.2016},
  journal={New astronomy reviews},
  doi={10.1016/j.newar.2006.06.030},
}
@conference{UBHD-68008066,
  author={Heidt, Jochen and Appenzeller, Immo and Noll, Stefan},
  title={The QSO Q0103-260 (z = 3.365) in the FORS Deep Field},
  year={2004},
  pages={?},
  language={eng},
  isbn={0-521-82449-4 and 978-0-521-82449-1},
}
@article{UBHD-68010703,
  author={Heidt, Jochen and Wagner, Stefan},
  title={RXJ 1745+398},
  subtitle={detection of the first AGN acting as a gravitational lense},
  year={1997},
  pages={68},
  language={eng},
  volume={13},
  note={Gesehen am 25.07.2016},
  journal={Abstract series},
}
@article{UBHD-68021257,
  author={Heidt, Jochen and Wagner, Stefan},
  title={Spectral variability of the BL Lac-Object S5 0716+71},
  year={1991},
  pages={22},
  language={eng},
  volume={6},
  note={Gesehen am 24.08.2016},
  journal={Abstract series},
}
@incollection{UBHD-67923991,
  author={Heidt, Jochen and Wagner, Stefan},
  title={Statistics of optical intraday variability in a complete sample of radio-selected BL Lac objects},
  year={1995},
  pages={?},
  language={eng},
  note={Gesehen am 12.01.2016},
  booktitle={De.arxiv.org},
}
@article{UBHD-67925582,
  author={Heidt, Jochen and Wagner, Stefan},
  title={Statistics of optical intraday variability in a complete sample of radio-selected BL Lacertae objects},
  year={1996},
  pages={42-52},
  language={eng},
  issn={1432-0746},
  volume={305},
  note={Gesehen am 15.01.2016},
  journal={Astronomy and astrophysics},
}
@book{UBHD-9408300,
  author={Heidt, Jochen},
  title={Statistische Untersuchungen der Variabilit{\"a}t in BL Lac Objekten},
  year={1994},
  pages={150 S.},
  language={ger},
  school={Heidelberg, Univ., Diss., 1994},
  keywords={BL-Lacertae-Objekt},
  library={UB [Signatur: 94 U 225] ; UB [Signatur: 94 U 225]},
}
@conference{UBHD-68021642,
  author={Heidt, Jochen and Bock, Holger Arne and K{\"u}mmel, Martin W. and Wagner, Stefan},
  title={Supplementary observations of OJ 287 and 3C 66A during the OJ-94 campaign},
  year={1994},
  pages={22-27},
  language={eng},
}
@article{UBHD-68797739,
  author={Hottinger, Philipp and Harris, Robert J. and Crass, Jonathan and Dietrich, Philipp-Immanuel and Blaicher, Matthias and Bechter, Andrew and Sands, Brian and Morris, Timothy and Basden, Alastair G. and Bharmal, Nazim Ali and Heidt, Jochen and Anagnos, Theodoros and Neureuther, Philip L. and Gl{\"u}ck, Martin and Power, Jennifer and Pott, J{\"o}rg-Uwe and Koos, Christian and Sawodny, Oliver and Quirrenbach, Andreas},
  title={On-sky results for the integrated microlens ring tip-tilt sensor},
  year={2021},
  pages={2517-2527},
  language={eng},
  issn={1520-8540},
  volume={38},
  number={9 vom: Sept.},
  note={Gesehen am 08.11.2021},
  journal={Journal of the Optical Society of America},
  doi={10.1364/JOSAB.421459},
}
@article{UBHD-68654437,
  author={Husemann, Bernd and Heidt, Jochen and Rosa, A. De and Vignali, C. and Bianchi, S. and Bogdanović, T. and Komossa, S. and Paragi, Z.},
  title={Revisiting dual AGN candidates with spatially resolved LBT spectroscopy},
  subtitle={the impact of spillover light contamination},
  year={2020},
  pages={15 S.},
  language={eng},
  issn={1432-0746},
  volume={639(2020) Artikel-Nummer A117},
  number={15 Seiten},
  note={Gesehen am 27.10.2020},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/202037988},
}
@article{UBHD-68010701,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={A deep imaging survey around QSOs with intermediate redshift},
  year={1997},
  pages={69},
  language={eng},
  volume={13},
  note={Gesehen am 25.07.2016},
  journal={Abstract series},
}
@incollection{UBHD-68009861,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={Environments of QSOs at intermediate redshifts},
  year={1998},
  pages={?},
  language={eng},
  note={Gesehen am 21.07.2016},
  booktitle={De.arxiv.org},
}
@incollection{UBHD-68009857,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={Environments of QSOS at intermediate redshifts},
  year={1999},
  pages={411},
  language={eng},
  isbn={1-886733-79-1 and 978-1-886733-79-4},
  booktitle={BL Lac phenomenon},
  editor={Takalo, Leo O. and Sillanp{\"a}{\"a}, Aimo},
}
@conference{UBHD-67912272,
  author={Jaeger, Klaus and Heidt, Jochen and Appenzeller, Immo},
  title={The FORS Deep Field (FDF)},
  subtitle={Selection and first impressions},
  year={1999},
  pages={43},
  language={eng},
}
@conference{UBHD-68009422,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={Galaxy clusters around quasars},
  year={2003},
  pages={26},
  language={eng},
}
@conference{UBHD-67910990,
  author={Jaeger, Klaus and Heidt, Jochen and Appenzeller, Immo},
  title={HE 1013-2136},
  subtitle={a young QSO at intermediate redshift?},
  year={2001},
  pages={?},
  language={eng},
}
@article{UBHD-67912250,
  author={Jaeger, Klaus and Appenzeller, Immo and Szeifert, Thomas and Heidt, Jochen and Seifert, Walter and Stahl, Otmar},
  title={Imaging and spectroscopy with FORS1 in the field of Q 0307-0015},
  year={1999},
  pages={L17-L21},
  language={eng},
  issn={1432-0746},
  volume={352},
  journal={Astronomy and astrophysics},
}
@article{UBHD-67912251,
  author={Jaeger, Klaus and Appenzeller, Immo and Szeifert, Thomas and Heidt, Jochen and Seifert, Walter and Stahl, Otmar},
  title={Imaging and spectroscopy with FORS1 in the field of Q 0307-0015},
  year={1999},
  pages={L17-L21},
  language={eng},
  issn={0004-6361},
  volume={352},
  journal={Astronomy & astrophysics},
}
@article{UBHD-67935557,
  author={Jaeger, Klaus and Heidt, Jochen and M{\"o}llenhoff, Claus and Wagner, Stefan},
  title={Internal kinematics of spiral galaxies in distant clusters},
  subtitle={II. Observations and data analysis},
  year={2004},
  pages={907-913},
  language={eng},
  issn={1432-0746},
  volume={422},
  number={3},
  note={Gesehen am 05.02.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20035937},
}
@conference{UBHD-68008060,
  author={Jaeger, Klaus and Heidt, Jochen and M{\"o}llenhoff, Claus},
  title={Internal kinematics of spiral galaxies in distant rich galaxy clusters},
  year={2004},
  pages={372-376},
  language={eng},
  issn={1743-9221},
  note={Gesehen am 15.07.2016},
  doi={10.1017/S1743921304000791},
}
@conference{UBHD-68008061,
  author={Jaeger, Klaus and Heidt, Jochen and M{\"o}llenhoff, Claus},
  title={Internal kinematics of spiral galaxies in distant rich galaxy clusters},
  year={2004},
  pages={372-376},
  language={eng},
  isbn={0-521-84908-X and 978-0-521-84908-1},
}
@conference{UBHD-68009842,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={A large survey of quasar environments},
  year={2001},
  pages={?},
  language={eng},
}
@incollection{UBHD-68010693,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={Observing the galaxy environment of QSOs},
  year={1997},
  pages={?},
  language={eng},
  note={Gesehen am 25.07.2016},
  booktitle={De.arxiv.org},
}
@conference{UBHD-68010699,
  author={Jaeger, Klaus and Fricke, Klaus J. and Heidt, Jochen},
  title={Observing the galaxy environment of QSOs},
  year={1997},
  pages={90},
  language={eng},
  isbn={3-540-63793-1 and 978-3-540-63793-6},
}
@conference{UBHD-68009876,
  author={Jaeger, Klaus and Heidt, Jochen},
  title={On the environments of radio-quiet QSOs},
  year={1998},
  pages={talk #H04},
  language={eng},
}
@conference{UBHD-68009421,
  author={Jaeger, Klaus and Ziegler, Bodo L. and Heidt, Jochen},
  title={Probing the internal kinematics of spirals in distant clusters},
  year={2003},
  pages={41},
  language={eng},
}
@article{UBHD-68682345,
  author={Kasper, Markus and Henning, Thomas and Heidt, Jochen},
  title={A triple star in disarray},
  subtitle={multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI},
  year={2020},
  pages={10 S.},
  language={eng},
  issn={1432-0746},
  volume={644(2020) Artikel-Nummer A114},
  number={10 Seiten},
  note={Gesehen am 21.01.2021},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/202039186},
}
@incollection{UBHD-67963142,
  author={Kiehlmann, Sebastian and Heidt, Jochen and Kurtanidze, Omar M.},
  title={Analyzing polarization swings in 3C 279},
  year={2013},
  pages={6 S.},
  language={eng},
  isbn={9781632662071},
  booktitle={The innermost regions of relativistic jets and their magnetic fields 2013},
  editor={Gómez, José L.},
  doi={10.1051/epjconf/20136106003},
}
@incollection{UBHD-67963132,
  author={Kiehlmann, Sebastian and Heidt, Jochen},
  title={Polarization angle swings in blazars},
  subtitle={the case of 3C 279},
  year={2016},
  pages={?},
  language={eng},
  note={Gesehen am 31.03.2016},
  booktitle={De.arxiv.org},
}
@article{UBHD-68575445,
  author={Kiehlmann, Sebastian and Savolainen, T. and Jorstad, S. G. and Sokolovsky, K. V. and Schinzel, F. K. and Marscher, A. P. and Larionov, V. M. and Agudo, I. and Akitaya, H. and Benítez, E. and Berdyugin, A. and Blinov, D. A. and Bochkarev, N. G. and Borman, G. A. and Burenkov, A. N. and Casadio, C. and Doroshenko, V. T. and Efimova, N. V. and Fukazawa, Y. and Gómez, J. L. and Grishina, T. S. and Hagen-Thorn, V. A. and Heidt, Jochen and Hiriart, D. and Itoh, R. and Joshi, M. and Kawabata, K. S. and Kimeridze, G. N. and Kopatskaya, E. N. and Korobtsev, I. V. and Krajci, T. and Kurtanidze, O. M. and Kurtanidze, S. O. and Larionova, E. G. and Larionova, L. V. and Lindfors, E. and López, J. M. and McHardy, I. M. and Molina, S. N. and Moritani, Y. and Morozova, D. A. and Nazarov, S. V. and Nikolashvili, M. G. and Nilsson, K. and Pulatova, N. G. and Reinthal, R. and Sadun, A. and Sasada, M. and Savchenko, S. S. and Sergeev, S. G. and Sigua, L. A. and Smith, P. S. and Sorcia, M. and Spiridonova, O. I. and Takaki, K. and Takalo, L. O. and Taylor, B. and Troitsky, I. S. and Uemura, M. and Ugolkova, L. S. and Ui, T. and Yoshida, M. and Zensus, J. A. and Zhdanova, V. E.},
  title={Polarization angle swings in blazars},
  subtitle={the case of 3C 279 (Corrigendum)},
  year={2016},
  pages={2 S.},
  language={eng},
  issn={1432-0746},
  volume={592(2016) Artikel-Nummer C1},
  number={2 Seiten},
  note={Gesehen am 11.05.2020},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201527725e},
}
@article{UBHD-67977222,
  author={Kiehlmann, Sebastian and Heidt, Jochen},
  title={Polarization angle swings in blazars},
  subtitle={the case of 3C 279},
  year={2016},
  pages={20 S.},
  language={eng},
  issn={1432-0746},
  volume={590(2016) Artikel-Nummer A10},
  number={20 Seiten},
  note={Gesehen am 11.05.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201527725},
}
@incollection{UBHD-67837010,
  author={Kraus, Adam L. and Quirrenbach, Andreas and Lobanov, A. and Krichbaum, T. P. and Schneider, P. and Wagner, Stefan and Heidt, Jochen and Bock, Holger Arne and Witze, A. and Aller, M. and Aller, H.},
  title={Unusual radio variability in the BL Lac object 0235+164},
  year={1999},
  pages={67-68},
  language={eng},
  isbn={1-886733-79-1 and 978-1-886733-79-4},
  booktitle={BL Lac phenomenon},
  editor={Takalo, Leo O. and Sillanp{\"a}{\"a}, Aimo},
}
@article{UBHD-67931688,
  author={Kraus, Alexander and Quirrenbach, Andreas and Wagner, Stefan and Heidt, Jochen and Bock, Holger Arne},
  title={Unusual radio variability in the BL Lacertae object 0235+164},
  year={1999},
  pages={807-816},
  language={eng},
  issn={1432-0746},
  volume={344},
  note={Gesehen am 28.1.2016},
  journal={Astronomy and astrophysics},
}
@incollection{UBHD-67837011,
  author={Kraus, Alexander and Quirrenbach, Andreas and Wagner, Stefan and Heidt, Jochen},
  title={Unusual radio variability in the BL Lac object 0235+164},
  year={1999},
  pages={?},
  language={eng},
  note={Gesehen am 29.06.2014},
  booktitle={Arxiv},
}
@article{UBHD-67963134,
  author={K{\"u}gler, Sven Dennis and Heidt, Jochen and Esser, Johannes},
  title={Properties of optically selected BL Lacertae candidates from the SDSS},
  year={2014},
  language={eng},
  issn={1432-0746},
  volume={569(2014) Artikel-Nummer A95},
  number={39 Seiten},
  note={Gesehen am 04.04.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201322594},
}
@conference{UBHD-67909355,
  author={K{\"u}mmel, Martin W. and Heidt, Jochen and Wagner, Stefan and Appenzeller, Immo},
  title={Number counts and angular correlation functions in the FORS deep field},
  year={2001},
  pages={159-159},
  language={eng},
  isbn={3-540-42799-6 and 978-3-540-42799-5},
}
@conference{UBHD-68012056,
  author={K{\"u}mmel, Martin W. and Wagner, Stefan and Heidt, Jochen},
  title={Optical polarization properties of gamma sources},
  year={1996},
  pages={127},
  language={eng},
}
@article{UBHD-68021252,
  author={K{\"u}mmel, Martin W. and Wagner, Stefan and Heidt, Jochen},
  title={Rapid variability of the polarization of the BL Lac object S5 0716+714},
  year={1994},
  pages={226},
  language={eng},
  volume={10},
  note={Gesehen am 24.08.2016},
  journal={Abstract series},
}
@article{UBHD-69294455,
  author={La Barbera, Francesco and Vazdekis, A. and Pasquali, Anna and Heidt, Jochen and Gargiulo, A. and Eftekhari, E.},
  title={Radial gradients of CO absorptions and abundance ratios in the bulge of M31},
  year={2024},
  pages={1-20},
  language={eng},
  issn={1432-0746},
  volume={687(2024) vom: Juli},
  number={Artikel-ID A156},
  note={Online ver{\"o}ffentlicht: 5. Juli 2024 ; Gesehen am 27.01.2025},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/202348990},
}
@article{UBHD-67932878,
  author={Linde, Joachim von der and Heidt, Jochen and Wagner, Stefan},
  title={A rapid optical flare in the distant gamma-ray source 0836 + 710},
  year={1993},
  pages={L23-L26},
  language={eng},
  issn={1432-0746},
  volume={267},
  number={1},
  journal={Astronomy and astrophysics},
}
@article{UBHD-68011620,
  author={Linden, Susanne von and Heidt, Jochen},
  title={The dynamics of the inner part of NGC 7331},
  year={1996},
  pages={52-62},
  language={eng},
  issn={1432-0746},
  volume={315},
  note={Gesehen am 27.07.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68012053,
  author={Linden, Susanne von and Heidt, Jochen},
  title={Simulation of mass transport in disk galaxies},
  year={1996},
  pages={405},
  language={eng},
  isbn={0-7923-3975-4 and 0-7923-3976-2 and 978-0-7923-3975-5 and 978-0-7923-3976-2},
}
@article{UBHD-67462223,
  author={Londish, Diana and Heidt, Jochen},
  title={The 2QZ BL Lac survey},
  subtitle={II.$nElektronische Ressource},
  year={2007},
  pages={556-578},
  language={eng},
  issn={1365-2966},
  volume={374},
  number={2},
  note={Gesehen am 21.08.2013},
  journal={Monthly notices of the Royal Astronomical Society},
  doi={10.1111/j.1365-2966.2006.11165.x},
}
@article{UBHD-68007585,
  author={Londish, Diana and Heidt, Jochen},
  title={2QZJ 215454.3-305654},
  subtitle={a radio-quiet BL Lacertae object or lineless quasi-stellar object?},
  year={2004},
  pages={903-908},
  language={eng},
  issn={1365-2966},
  volume={352},
  number={3},
  note={Gesehen am 14.07.2016},
  journal={Monthly notices of the Royal Astronomical Society},
  doi={10.1111/j.1365-2966.2004.07980.x},
}
@article{UBHD-67885710,
  author={Mandel, Holger and Seifert, Walter and Appenzeller, Immo and Feiz, Carmen and Germeroth, André and Heidt, Jochen and Lehmitz, Michael and Quirrenbach, Andreas},
  title={LUCIFER},
  subtitle={a NIR spectrograph and imager for the LBT},
  year={2007},
  pages={626},
  language={eng},
  issn={0004-6337},
  volume={328},
  number={7},
  journal={Astronomical notes},
}
@conference{UBHD-67842370,
  author={Mandel, Holger and Appenzeller, Immo and Seifert, Walter and Feiz, Carmen and Germeroth, André and Heidt, Jochen and Quirrenbach, Andreas},
  title={LUCIFER status report},
  subtitle={Summer 2006},
  year={2006},
  pages={1-11},
  language={eng},
}
@conference{UBHD-67844110,
  author={Mandel, Holger and Seifert, Walter and Feiz, Carmen and Germeroth, André and Heidt, Jochen and Quirrenbach, Andreas and Sch{\"a}ffner, Ludwig},
  title={LUCIFER status report},
  subtitle={summer 2008},
  year={2008},
  pages={1-9},
  language={eng},
}
@article{UBHD-67901938,
  author={Mehlert, D{\"o}rte and Noll, Stefan and Appenzeller, Immo and Heidt, Jochen and M{\"o}llenhoff, Claus and Stahl, Otmar},
  title={Evidence for chemical evolution in the spectra of high redshift galaxies},
  year={2002},
  pages={809-819},
  language={eng},
  issn={1432-0746},
  volume={393},
  number={3},
  note={Gesehen am 13.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20021052},
}
@article{UBHD-67912254,
  author={M{\"o}llenhoff, Claus and Appenzeller, Immo and Heidt, Jochen and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas},
  title={Morphological structure and colors of NGC 1232 and NGC 1288},
  year={1999},
  pages={L5-L10},
  language={eng},
  issn={1432-0746},
  volume={352},
  journal={Astronomy and astrophysics},
}
@article{UBHD-67912255,
  author={M{\"o}llenhoff, Claus and Appenzeller, Immo and Heidt, Jochen and Seifert, Walter and Stahl, Otmar and Szeifert, Thomas},
  title={Morphological structure and colors of NGC 1232 and NGC 1288},
  year={1999},
  pages={L5-L10},
  language={eng},
  issn={0004-6361},
  volume={352},
  journal={Astronomy & astrophysics},
}
@article{UBHD-68009450,
  author={M{\"o}llenhoff, Claus and Heidt, Jochen},
  title={Surface photometry of spiral galaxies in NIR},
  subtitle={structural parameters of disks and bulges},
  year={2001},
  pages={16-37},
  language={eng},
  issn={1432-0746},
  volume={368},
  number={1},
  note={Gesehen am 20.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20000335},
}
@article{UBHD-68009878,
  author={Nilsson, Kari and Heidt, Jochen},
  title={Discovery of an optical jet in the BL Lacertae Object 3C 371},
  year={1997},
  pages={L107-L111},
  language={eng},
  issn={2041-8213},
  volume={484},
  number={2},
  note={Gesehen am 21.07.2016},
  journal={The astrophysical journal},
  doi={10.1086/310790},
}
@article{UBHD-67939407,
  author={Nilsson, Kari and Heidt, Jochen and Wagner, Stefan},
  title={Discovery of a blue arc near the BL Lacertae object RGB 1745+398},
  year={1999},
  pages={81-85},
  language={eng},
  issn={1432-0746},
  volume={343},
  note={Gesehen am 10.02.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68009866,
  author={Nilsson, Kari and Heidt, Jochen and Wagner, Stefan},
  title={Discovery of a blue arc near the BL Lacertae object RGB 1745+398},
  year={1999},
  pages={134},
  language={eng},
  isbn={951-29-1615-0 and 978-951-29-1615-3},
}
@incollection{UBHD-68009858,
  author={Nilsson, Kari and Heidt, Jochen},
  title={High resolution imaging of TeV BL Lacertae objects},
  year={1999},
  pages={405},
  language={ger},
  isbn={1-886733-79-1 and 978-1-886733-79-4},
  booktitle={BL Lac phenomenon},
  editor={Takalo, Leo O. and Sillanp{\"a}{\"a}, Aimo},
}
@conference{UBHD-68009843,
  author={Nilsson, Kari and Heidt, Jochen},
  title={Host galaxies of RGB BL Lacertae objects},
  year={2001},
  pages={100},
  language={eng},
  isbn={951-29-1827-7 and 978-951-29-1827-0},
}
@article{UBHD-68009423,
  author={Nilsson, Kari and Heidt, Jochen},
  title={R-band imaging of the host galaxies of RGB BL Lacertae objects},
  year={2003},
  pages={95-118},
  language={eng},
  issn={1432-0746},
  volume={400},
  number={1},
  note={Gesehen am 20.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20021861},
}
@conference{UBHD-68009849,
  author={Nilsson, Kari and Heidt, Jochen},
  title={Two-dimensional photometric decomposition of four TeV BL Lacertae objects},
  year={1999},
  pages={57-58},
  language={eng},
}
@article{UBHD-68009844,
  author={Nilsson, Kari and Heidt, Jochen},
  title={Two-dimensional photometric decomposition of the TeV BL Lacertae objects Markarian 421, Markarian 501, and 1ES 2344+514},
  year={1999},
  pages={1223-1232},
  language={eng},
  issn={1538-3873},
  volume={111},
  note={Gesehen am 21.07.2016},
  journal={Publications of the Astronomical Society of the Pacific},
  doi={10.1086/316446},
}
@conference{UBHD-68008510,
  author={Nilsson, Kurt and Heidt, Jochen},
  title={Host galaxies of RGB BL lacertae objects},
  year={2003},
  pages={303},
  language={eng},
  isbn={1-58381-146-X and 978-1-58381-146-7},
}
@article{UBHD-67901896,
  author={Noll, Stefan and Mehlert, D{\"o}rte and Appenzeller, Immo and Heidt, Jochen and Stahl, Otmar and Tapken, Christian},
  title={The FORS deep field spectroscopic survey},
  year={2004},
  pages={885-906},
  language={eng},
  issn={1432-0746},
  volume={418},
  note={Gesehen am 13.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20034434},
}
@article{UBHD-67930156,
  author={Ostorero, Luisa and Wagner, Stefan and Emmanoulopoulos, Dimitrios and Hauser, Marcus and Heidt, Jochen},
  title={Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71},
  subtitle={I. Simultaneous broadband observations during November 2003},
  year={2006},
  pages={797-807},
  language={eng},
  issn={1432-0746},
  volume={451},
  number={3},
  note={Gesehen am 26.01.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20054075},
}
@article{UBHD-67430497,
  author={Palma, Norman I. and B{\"o}ttcher, M. and Calle, I. de la and Agudo, I. and Aller, M. and Aller, H. and Bach, U. and Benítez, E. and Buemi, C. S. and Escande, L. and Gómez, J. L. and Gurwell, M. A. and Heidt, Jochen and Hiriart, D. and Jorstad, S. G. and Joshi, M. and L{\"a}hteenm{\"a}ki, A. and Larionov, V. M. and Leto, P. and Li, Y. and López, J. M. and Lott, B. and Madejski, G. and Marscher, A. P. and Morozova, D. A. and Raiteri, C. M. and Roberts, V. and Tornikoski, M. and Trigilio, C. and Umana, G. and Villata, M. and Wylezalek, D.},
  title={Multiwavelength observations of the γ-ray blazar PKS 0528 in quiescence},
  year={2011},
  pages={1-18},
  language={eng},
  issn={1538-4357},
  volume={735},
  note={Gesehen am 14.06.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/735/1/60},
}
@article{UBHD-69275866,
  author={Panda, Swayamtrupta and Pozo Nuñez, Francisco and Bañados, Eduardo and Heidt, Jochen},
  title={Probing the C iv continuum size-luminosity relation in active galactic nuclei with photometric reverberation mapping},
  year={2024},
  pages={1-8},
  language={eng},
  issn={2041-8213},
  volume={968},
  note={Ver{\"o}ffentlicht: 11. Juni 2024 ; Gesehen am 22.11.2024},
  journal={The astrophysical journal},
  doi={10.3847/2041-8213/ad5014},
}
@conference{UBHD-68008509,
  author={Pasanen, Markku and Heidt, Jochen},
  title={Spectroscopic measurements of 15 RGB BL lac objects},
  year={2003},
  pages={309},
  language={eng},
  isbn={1-58381-146-X and 978-1-58381-146-7},
}
@article{UBHD-67836268,
  author={Pian, Elena and Wagner, Stefan and Heidt, Jochen and Quirrenbach, Andreas},
  title={Simultaneous UV, optical and radio monitoring of the BL Lac object OJ 287 in March 1993},
  year={1995},
  pages={57-60},
  language={eng},
  issn={0273-1177},
  volume={16},
  number={3},
  note={Gesehen am 26.06.2015},
  journal={Advances in space research},
  doi={10.1016/0273-1177(95)00043-E},
}
@article{UBHD-67836991,
  author={Pian, Elena and Wagner, Stefan and Heidt, Jochen and Quirrenbach, Andreas},
  title={Simultaneous UV, optical and radio monitoring of the BL Lac object OJ 287 in March 1993},
  year={1995},
  pages={57-60},
  language={eng},
  issn={0273-1177},
  volume={16},
  number={3},
  journal={Advances in space research},
}
@incollection{UBHD-68009859,
  author={Pursimo, Tapio and Heidt, Jochen},
  title={Deep imaging of the 1 Jy BL Lacs - MgII absorbers},
  year={1999},
  pages={385},
  language={eng},
  isbn={1-886733-79-1 and 978-1-886733-79-4},
  booktitle={BL Lac phenomenon},
  editor={Takalo, Leo O. and Sillanp{\"a}{\"a}, Aimo},
}
@conference{UBHD-68009838,
  author={Pursimo, Tapio and Heidt, Jochen},
  title={Deep NOT imaging of tadio selected BL Lac objects},
  year={2001},
  pages={32},
  language={eng},
  isbn={1-58381-059-5 and 978-1-58381-059-0},
}
@article{UBHD-68009439,
  author={Pursimo, Tapio and Heidt, Jochen},
  title={Deep optical imaging of radio selected BL Lacertae objects},
  year={2002},
  pages={810-824},
  language={eng},
  issn={1432-0746},
  volume={381},
  number={3},
  note={Gesehen am 20.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20011564},
}
@article{UBHD-67930163,
  author={Pursimo, Tapio and Heidt, Jochen and Wagner, Stefan},
  title={Intensive monitoring of OJ 287},
  year={2000},
  pages={141-155},
  language={eng},
  issn={1286-4846},
  volume={146},
  number={1},
  note={Gesehen am 27.01.2016},
  journal={Astronomy & astrophysics},
  doi={10.1051/aas:2000264},
}
@article{UBHD-68009875,
  author={Quirrenbach, Andreas and Wagner, Stefan and Heidt, Jochen},
  title={Rapid variability in the BL Lacertae object AO 0235+164},
  year={1998},
  pages={862},
  language={eng},
  issn={0002-7537},
  volume={30},
  journal={Bulletin of the American Astronomical Society},
}
@article{UBHD-67429854,
  author={Raiteri, Claudia M. and Heidt, Jochen},
  title={The long-lasting activity of 3C 454.3. GASP-WEBT and satellite observations in 2008 - 2010},
  year={2011},
  pages={A87},
  language={eng},
  issn={1432-0746},
  volume={534},
  number={10},
  note={Gesehen am 13.06.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201117026},
}
@article{UBHD-68009443,
  author={Raiteri, Claudia M. and Heidt, Jochen and Wagner, Stefan},
  title={Optical and radio variability of the BL Lacertae object},
  subtitle={a possible 5-6 year periodicity},
  year={2001},
  pages={396-412},
  language={eng},
  issn={1432-0746},
  volume={377},
  number={2},
  note={Gesehen am 20.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20011112},
}
@article{UBHD-67935563,
  author={Raiteri, Claudia M. and Wagner, Stefan and Emmanoulopoulos, Dimitrios and Heidt, Jochen},
  title={Prominent activity of the blazar OJ 287 in 2005. XMM-Newton and multiwavelength observations},
  year={2007},
  pages={741-744},
  language={eng},
  issn={0037-8720},
  volume={78},
  journal={Memorie della Società Astronomica Italiana},
}
@article{UBHD-67462217,
  author={Raiteri, Claudia M. and Heidt, Jochen},
  title={Spectroscopic monitoring of the BL Lac object AO 0235+164},
  year={2007},
  pages={871-878},
  language={eng},
  issn={1432-0746},
  volume={464},
  number={3},
  note={Gesehen am 21.08.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20066599},
}
@article{UBHD-67420093,
  author={Raiteri, Claudia M. and Heidt, Jochen},
  title={Variability of the blazar 4C 38.41 (B3 1633+382) from GHz frequencies to GeV energies},
  year={2012},
  pages={A48},
  language={eng},
  issn={1432-0746},
  volume={545},
  number={9},
  note={Gesehen am 06.06.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/201219492},
}
@article{UBHD-67443347,
  author={Raiteri, Claudia M. and Heidt, Jochen},
  title={WEBT multiwavelength monitoring and XMM-Newton observations of  BL lacertae in 2007 - 2008},
  subtitle={unveiling different emission components},
  year={2009},
  pages={769-779},
  language={eng},
  issn={1432-0746},
  volume={507},
  number={2},
  note={Gesehen am 10.07.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/200912953},
}
@article{UBHD-68983701,
  author={Saglia, Roberto and Heidt, Jochen and Jahnke, Knud and Seidel, Gregor and Schirmer, Mischa},
  title={Euclid preparation},
  subtitle={XX. The complete calibration of the color-redshift relation survey : LBT observations and data release},
  year={2022},
  pages={1-22},
  language={eng},
  issn={1432-0746},
  volume={664(2022) vom: Aug.},
  number={Artikel-ID A196},
  note={Gesehen am 09.11.2022},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/202243604},
}
@article{UBHD-69260810,
  author={Sauter, Jonas and Brandner, Wolfgang and Heidt, Jochen and Cantalloube, Faustine},
  title={Detection limits of thermal-infrared observations with adaptive optics},
  subtitle={I. observational data},
  year={2024},
  pages={1-11},
  language={eng},
  issn={1538-3873},
  volume={136},
  note={Ver{\"o}ffentlicht: 3. September 2024 ; Gesehen am 09.10.2024},
  journal={Publications of the Astronomical Society of the Pacific},
  doi={10.1088/1538-3873/ad6f45},
}
@article{UBHD-68007579,
  author={Sbarufatti, Boris and Heidt, Jochen},
  title={ESO-VLT optical spectroscopy of BL Lac objects},
  subtitle={I. new redshifts},
  year={2005},
  pages={559-566},
  language={eng},
  issn={1538-3881},
  volume={129},
  number={2},
  note={Gesehen am 14.07.2016},
  journal={The astronomical journal},
  doi={10.1086/427138},
}
@article{UBHD-68007082,
  author={Sbarufatti, Boris and Heidt, Jochen},
  title={ESO-VLT optical spectroscopy of BL Lac objects},
  subtitle={II. New redshifts, featureless objects and classification assessments},
  year={2006},
  pages={1-19},
  language={eng},
  issn={1538-3881},
  volume={132},
  number={1},
  note={Gesehen am 13.07.2016},
  journal={The astronomical journal},
  doi={10.1086/503031},
}
@conference{UBHD-68007581,
  author={Sbarufatti, Boris and Heidt, Jochen},
  title={VLT optical spectroscopy of BL Lac objects},
  year={2005},
  pages={140-141},
  language={eng},
  isbn={978-3-540-31639-8},
  note={Gesehen am 14.07.2016},
  doi={10.1007/11403913_23},
}
@conference{UBHD-68008507,
  author={Schafeitel, Tiina and Heidt, Jochen},
  title={High-resolution imaging of EGRET blazars},
  year={2003},
  pages={313},
  language={eng},
  isbn={1-58381-146-X and 978-1-58381-146-7},
}
@article{UBHD-69205641,
  author={Schey, Leonid and Heidt, Jochen and Pramskiy, Alexander and Thompson, D. and Agapito, G. and Esposito, S. and Gredel, Roland and Miller, D. and Pinna, E. and Puglisi, A. and Rossi, F. and Seifert, Walter and Taylor, G. and Quirrenbach, Andreas},
  title={Decomposition of the central structure of NGC 2273 in the NIR},
  subtitle={a case study},
  year={2023},
  pages={1-15},
  language={eng},
  issn={1521-3994},
  volume={344},
  note={Gesehen am 18.04.2024},
  journal={Astronomische Nachrichten},
  doi={10.1002/asna.20230094},
}
@incollection{UBHD-67911001,
  author={Schmid, Hans Martin and Appenzeller, Immo and Camenzind, Max and Heidt, Jochen and Wagner, Stefan},
  title={VLT-spectropolarimetry of bright Seyfert 1 galaxies},
  year={2000},
  pages={264-273},
  language={eng},
  isbn={978-0-8194-3630-6 and 0-8194-3630-5},
  booktitle={Discoveries and research prospects with 8 - 10 meter class telescopes},
  editor={Bergeron, Jacqueline},
}
@article{UBHD-67908788,
  author={Schmid, Hans Martin and Appenzeller, Immo and Camenzind, Max and Heidt, Jochen and Wagner, Stefan},
  title={VLT-spectropolarimetry of the high-polarization Seyfert 1 galaxy Fairall 51},
  year={2001},
  pages={59-70},
  language={eng},
  issn={1432-0746},
  volume={372},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20010487},
}
@article{UBHD-67908790,
  author={Schmid, Hans Martin and Appenzeller, Immo and Camenzind, Max and Heidt, Jochen and Wagner, Stefan},
  title={VLT-spectropolarimetry of the high-polarization Seyfert 1 galaxy Fairall 51},
  year={2001},
  pages={59-70},
  language={eng},
  issn={0004-6361},
  volume={372},
  journal={Astronomy & astrophysics},
}
@article{UBHD-67928855,
  author={Schramm, Jochen and Camenzind, Max and Wagner, Stefan and Dreissigacker, Oliver and Heidt, Jochen},
  title={Recent activity in the optical and radio lightcurves of the blazar 3C 345},
  subtitle={indications for a 'lighthouse effect' due to jet rotation},
  year={1993},
  pages={391-405},
  language={eng},
  issn={1432-0746},
  volume={278},
  number={2},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68021248,
  author={Schramm, Jochen and Wagner, Stefan and Heidt, Jochen},
  title={The recent lightcurve of 3C 345},
  year={1994},
  pages={393},
  language={eng},
  isbn={0-7923-2745-4 and 0-7923-2744-6 and 978-0-7923-2745-5 and 978-0-7923-2744-8},
}
@article{UBHD-68009870,
  author={Shin, Jonghyeon and Krautter, Joachim and Heidt, Jochen},
  title={The shell of QU Vulpeculae at 2.2 Microns, Hα, and 3.6 centimeters},
  year={1998},
  pages={1966-1970},
  language={eng},
  issn={1538-3881},
  volume={116},
  number={4},
  note={Gesehen am 21.07.2016},
  journal={The astronomical journal},
  doi={10.1086/300529},
}
@article{UBHD-67926114,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen and Wagner, Stefan and Bock, Holger Arne and K{\"u}mmel, Martin W.},
  title={Confirmation of the 12-year optical outburst cycle in blazar OJ 287},
  year={1996},
  pages={L17-L20},
  language={eng},
  issn={1432-0746},
  volume={305},
  note={Gesehen am 07.01.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68021246,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen and Bock, Holger Arne},
  title={Coordinated multifrequency observations of OJ 287 and Mk 421 (March 1993)},
  year={1994},
  pages={404},
  language={eng},
  isbn={0-7923-2745-4 and 0-7923-2744-6 and 978-0-7923-2745-5 and 978-0-7923-2744-8},
}
@article{UBHD-68009865,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen},
  title={Deep optical imaging of the Egret-Detected blazars},
  year={1999},
  pages={77-80},
  language={eng},
  issn={0888-6512},
  volume={39},
  note={Gesehen am 21.07.2016},
  journal={Astrophysical letters & communications},
}
@article{UBHD-68010712,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen},
  title={ Double-peak structure in the cyclic optical outbursts of blazar OJ 287},
  year={1997},
  pages={L13-L16},
  language={eng},
  issn={1432-0746},
  volume={315},
  note={Gesehen am 25.07.2016},
  journal={Astronomy and astrophysics},
}
@conference{UBHD-68011644,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen},
  title={The environment of 0J287},
  subtitle={nearby galaxies and a long optical jet?},
  year={1996},
  pages={47-48},
  language={eng},
  isbn={0-7923-4122-8 and 0-7923-4121-X and 978-0-7923-4122-2 and 978-0-7923-4121-5},
}
@conference{UBHD-68011641,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen and Wagner, Stefan and Bock, Holger Arne and K{\"u}mmel, Martin W.},
  title={Light curves of OJ 287, 3C 66A, AO 0235+164 and S5 0716+714 observed during the OJ-94 project},
  year={1996},
  pages={7},
  language={eng},
  isbn={951-29-0642-2 and 978-951-29-0642-0},
}
@conference{UBHD-68012057,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen},
  title={Optical variations of OJ 287},
  year={1996},
  pages={74-79},
  language={eng},
  isbn={1-886733-30-9 and 978-1-886733-30-5},
}
@conference{UBHD-68010695,
  author={Sillanp{\"a}{\"a}, Aimo and Heidt, Jochen},
  title={Some examples of the extremely close environments of BL Lac objects},
  year={1997},
  pages={223},
  language={eng},
  isbn={3-540-63793-1 and 978-3-540-63793-6},
}
@article{UBHD-67407024,
  author={Sorcia, Marco and Heidt, Jochen},
  title={Long-term optical polarization variability of the TeV Blazar 1ES 1959+650},
  year={2013},
  pages={14 S.},
  language={eng},
  issn={1538-4365},
  volume={206(2013) Artikel-Nummer 11},
  number={14 Seiten},
  note={Gesehen am 21.05.2013},
  journal={The astrophysical journal},
  doi={10.1088/0067-0049/206/2/11},
}
@article{UBHD-68002799,
  author={Sorcia, Marco and Heidt, Jochen},
  title={Polarimetric monitoring of blazars at San Pedro Mártir},
  year={2011},
  pages={131},
  language={eng},
  issn={0185-1101},
  volume={40},
  note={Gesehen am 04.07.2016},
  journal={Revista mexicana de astronomía y astrofísica},
}
@article{UBHD-67930170,
  author={Takalo, Leo O. and Heidt, Jochen and Wagner, Stefan and K{\"u}mmel, Martin W.},
  title={Monitoring of 3C 66A during an extended outburst},
  subtitle={I. The light curves},
  year={1996},
  pages={313-321},
  language={eng},
  issn={1286-4846},
  volume={120},
  note={Gesehen am 27.01.2016},
  journal={Astronomy & astrophysics},
}
@conference{UBHD-68010694,
  author={Takalo, Leo O. and Heidt, Jochen},
  title={The optical jet in 3C 371},
  year={1997},
  pages={225},
  language={eng},
  isbn={3-540-63793-1 and 978-3-540-63793-6},
}
@conference{UBHD-68011645,
  author={Takalo, Leo O. and Heidt, Jochen and Bock, Holger Arne and Wagner, Stefan and K{\"u}mmel, Martin W.},
  title={Variability characteristics of Blazar OJ287},
  year={1996},
  pages={45-46},
  language={eng},
  isbn={0-7923-4122-8 and 0-7923-4121-X and 978-0-7923-4122-2 and 978-0-7923-4121-5},
}
@article{UBHD-67901384,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan and Seifert, Walter},
  title={Lyα emission galaxies at a redshift of z = 5.7 in the FORS deep field},
  year={2006},
  pages={145-152},
  language={eng},
  issn={1432-0746},
  volume={455},
  number={1},
  note={Gesehen am 12.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20064872},
}
@article{UBHD-67456774,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={Lyα emission in high-redshift galaxies},
  year={2007},
  pages={63-72},
  language={eng},
  issn={1432-0746},
  volume={467},
  number={1},
  note={Gesehen am 09.08.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20065825},
}
@incollection{UBHD-67918736,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen and Mehlert, D{\"o}rte and Noll, Stefan and Seifert, Walter},
  title={Lyman-alpha emission galaxies at a redshift of z = 5.7 in the FORS deep field},
  year={2006},
  pages={?},
  language={eng},
  note={Gesehen am 21.12.2015},
  booktitle={Arxiv},
}
@incollection{UBHD-67901380,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={Lyman alpha emission in high-redshift galaxies},
  year={2007},
  pages={?},
  language={eng},
  note={Gesehen am 12.11.2015},
  booktitle={De.arxiv.org},
}
@article{UBHD-67901381,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={Lyman alpha emission in high-redshift galaxies},
  year={2007},
  pages={63-72},
  language={eng},
  issn={1432-0746},
  volume={467},
  number={1},
  note={Gesehen am 12.11.2015},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20065825},
}
@article{UBHD-67901382,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={Lyman alpha emission in high-redshift galaxies},
  year={2007},
  pages={63-72},
  language={eng},
  issn={0004-6361},
  volume={467},
  number={1},
  journal={Astronomy & astrophysics},
}
@article{UBHD-67901376,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={The puzzle of the Lya galaxies},
  subtitle={new results from the VLT},
  year={2007},
  pages={51-55},
  language={eng},
  volume={128},
  number={?},
  note={Gesehen am 12.11.2015},
  journal={The ESO messenger},
}
@article{UBHD-67901377,
  author={Tapken, Christian and Appenzeller, Immo and Heidt, Jochen},
  title={The puzzle of the Lya galaxies},
  subtitle={new results from the VLT},
  year={2007},
  pages={51-55},
  language={eng},
  issn={0026-0363},
  volume={128},
  number={?},
  journal={The messenger / ESO, European Southern Observatory},
}
@article{UBHD-67935561,
  author={Treves, Aldo and Wagner, Stefan and Heidt, Jochen},
  title={Multifrequency observations of KAZ 102 during the ROSAT all-sky survey},
  year={1995},
  pages={589-596},
  language={eng},
  volume={442},
  number={2},
  note={Gesehen am 05.02.2016},
  journal={The astrophysical journal},
}
@article{UBHD-68021255,
  author={Ulrich, Marie-Helene and Heidt, Jochen and Wagner, Stefan},
  title={Multiwavelength observations of the quasar Q 1821 + 643 during the ROSAT All Sky Survey},
  year={1992},
  pages={183-189},
  language={eng},
  issn={1432-0746},
  volume={266},
  number={1},
  note={Gesehen am 24.08.2016},
  journal={Astronomy and astrophysics},
}
@article{UBHD-68003923,
  author={Valtonen, Mauri J. and Heidt, Jochen},
  title={A massive binary black-hole system in OJ 287 and a test of general relativity},
  year={2008},
  pages={851-853},
  language={eng},
  issn={1476-4687},
  volume={452},
  note={Gesehen am 06.07.2016},
  journal={Nature},
  doi={10.1038/nature06896},
}
@article{UBHD-67454217,
  author={Valtonen, Mauri J. and Heidt, Jochen},
  title={A test of a massive binary black hole system and of Einsteins General Relativity in the quasar OJ 287},
  year={2008},
  pages={851-853},
  language={eng},
  issn={1476-4687},
  volume={452},
  number={6896},
  note={Gesehen am 05.08.2013},
  journal={Nature},
  doi={10.1038/nature06896},
}
@article{UBHD-67448699,
  author={Valtonen, Mauri J. and Heidt, Jochen},
  title={The tidally induced outbursts in OJ 287 during 2005 - 2008},
  year={2009},
  pages={781-785},
  language={eng},
  issn={1538-4357},
  volume={698},
  number={1},
  note={Gesehen am 22.07.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/698/1/781},
}
@article{UBHD-67437852,
  author={Vercellone, Stefano and Heidt, Jochen},
  title={Multiwavelength observations of 3C 454.3.},
  subtitle={III. eighteen months of agile monitoring of the "Crazy Diamond"},
  year={2010},
  pages={405-420},
  language={eng},
  issn={1538-4357},
  volume={712},
  number={1},
  note={Gesehen am 01.07.2013},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/712/1/405},
}
@article{UBHD-67444555,
  author={Villata, Massimo and Heidt, Jochen and Mommert, Michael},
  title={The GASP-WEBT monitoring of 3C 454.3 during the 2008 optical-to-radio and γ-ray outburst},
  year={2009},
  pages={L9-L12},
  language={eng},
  issn={1432-0746},
  volume={504},
  number={3},
  note={Gesehen am 12.07.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361/200912732},
}
@article{UBHD-67455647,
  author={Villata, Massimo and Heidt, Jochen},
  title={Multifrequency monitoring of the blazar 0716+714 during the GASP-WEBT-AGILE campaign of 2007},
  year={2008},
  pages={L79-L82},
  language={eng},
  issn={1432-0746},
  volume={481},
  number={2},
  note={Gesehen am 07.08.2013},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:200809552},
}
@article{UBHD-68007577,
  author={Villata, Massimo and Heidt, Jochen},
  title={The unprecedented optical outburst of the quasar 3C 454.3},
  year={2006},
  pages={817-822},
  language={eng},
  issn={1432-0746},
  volume={453},
  number={3},
  note={Gesehen am 14.07.2016},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:20064817},
}
@article{UBHD-67444578,
  author={Villforth, Carolin and Heidt, Jochen},
  title={Intranight polarization variability in radio-loud and radio-quiet AGN},
  year={2009},
  pages={1893-1908},
  language={eng},
  issn={1365-2966},
  volume={397},
  number={4},
  note={Gesehen am 12.07.2013},
  journal={Monthly notices of the Royal Astronomical Society},
  doi={10.1111/j.1365-2966.2009.14886.x},
}
@article{UBHD-67450347,
  author={Villforth, Carolin and Heidt, Jochen and Nilsson, Kirsten},
  title={Quasar host galaxies in the FORS deep field},
  year={2008},
  pages={133-143},
  language={eng},
  issn={1432-0746},
  volume={488},
  number={1},
  note={Gesehen am 25.07.2013. - Auch zitiert als: QSO host galaxies in the FORS deep field},
  journal={Astronomy and astrophysics},
  doi={10.1051/0004-6361:200809712},
}
@article{UBHD-67437855,
  author={Villforth, Carolin and Heidt, Jochen},
  title={Variability and stability in blazar jets on time-scales of years},
  subtitle={optical polarization monitoring of OJ 287 in 2005 - 2009},
  year={2010},
  pages={2087-2111},
  language={eng},
  issn={1365-2966},
  volume={402},
  number={3},
  note={Gesehen am 01.07.2013},
  journal={Monthly notices of the Royal Astronomical Society},
  doi={10.1111/j.1365-2966.2009.16133.x},
}
@article{UBHD-67924006,
  author={Wagner, Stefan and Bock, Holger Arne and Heidt, Jochen and Montigny, Corinna von},
  title={High-energy gamma rays from PKS 1406–076 and the observation of correlated gamma-ray and optical emission},
  year={1995},
  pages={L97-L100},
  language={eng},
  issn={2041-8213},
  volume={454},
  journal={The astrophysical journal},
}
@conference{UBHD-67835756,
  author={Wagner, Stefan and Heidt, Jochen and Quirrenbach, Andreas},
  title={Radio- and optical variability in 0716+714},
  year={1992},
  pages={598-599},
  language={eng},
  isbn={3-540-55554-4 and 0-387-55554-4 and 978-0-387-55554-6 and 978-3-540-55554-4},
}
@article{UBHD-67914185,
  author={Wagner, Stefan and Heidt, Jochen and Quirrenbach, Andreas and Appenzeller, Immo and Kneer, Reinhold},
  title={Rapid variability in S5 0716+714 across the electromagnetic spectrum},
  year={1996},
  pages={2187-2211},
  language={eng},
  issn={0004-6256},
  volume={111},
  number={6},
  note={Gesehen am 10.12.2015},
  journal={The astronomical journal},
  doi={10.1086/117954},
}
@article{UBHD-67914187,
  author={Wagner, Stefan and Heidt, Jochen and Quirrenbach, Andreas and Appenzeller, Immo and Kneer, Reinhold},
  title={Rapid variability in S5 0716+714 across the electromagnetic spectrum},
  year={1996},
  pages={2187-2211},
  language={eng},
  issn={0004-6256},
  volume={111},
  number={6},
  journal={The astronomical journal},
}
@article{UBHD-67914174,
  author={Zickgraf, Franz-Josef and Thiering, Ingeborg and Krautter, Joachim and Appenzeller, Immo and Kneer, Reinhold and Pakull, Manfred W. and Heidt, Jochen},
  title={Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources},
  subtitle={II. the optical observations},
  year={1997},
  pages={103-114},
  language={eng},
  issn={1286-4846},
  volume={123},
  number={1},
  journal={Astronomy & astrophysics},
}
@article{UBHD-68009431,
  author={Ziegler, Bodo L. and Heidt, Jochen and Mehlert, D{\"o}rte and M{\"o}llenhoff, Claus and Noll, Stefan and Sutorius, Eckhard},
  title={The evolution of the Tully-Fisher relation of spiral galaxies},
  year={2001},
  pages={L69-L72},
  language={eng},
  issn={2041-8213},
  volume={564},
  number={2},
  note={Gesehen am 20.07.2016},
  journal={The astrophysical journal},
  doi={10.1086/338962},
}
@article{UBHD-68008067,
  author={Ziegler, Bodo L. and Heidt, Jochen and M{\"o}llenhoff, Claus},
  title={Internal kinematics of spiral galaxies in distant clusters},
  year={2003},
  pages={L87-L90},
  language={eng},
  issn={2041-8213},
  volume={598},
  number={2},
  note={Gesehen am 15.07.2016},
  journal={The astrophysical journal},
  doi={10.1086/379623},
}
@conference{UBHD-68009841,
  author={Ziegler, Bodo L. and Jaeger, Klaus and Heidt, Jochen},
  title={Tully-Fisher relations of spiral galaxies in distant clusters},
  year={2001},
  pages={?},
  language={eng},
}