@article{UBHD-68254446,
  author={Repp, Julia Maria Anne and B{\"o}hm, Christine and D{\"o}rr, Andreas and Goncharov, Mikhail Leonidovich and Roux, Christian-Eric and Ulmer, Stefan and Blaum, Klaus},
  title={PENTATRAP},
  subtitle={a novel cryogenic multi-Penning-trap experiment for high-precision mass measurements on highly charged ions},
  year={2012},
  pages={983-996},
  language={eng},
  issn={1432-0649},
  volume={107},
  number={4},
  note={Gesehen am 24.05.2018},
  journal={Applied physics},
  doi={10.1007/s00340-011-4823-6},
}
@article{UBHD-68247966,
  author={Roux, Christian-Eric and B{\"o}hm, Christine and D{\"o}rr, Andreas and Goncharov, Mikhail Leonidovich and Repp, Julia Maria Anne and Ulmer, Stefan and Blaum, Klaus},
  title={The trap design of PENTATRAP},
  year={2012},
  pages={997-1005},
  language={eng},
  issn={1432-0649},
  volume={107},
  number={4},
  note={Published online: 26 November 2011 ; Gesehen am 30.04.2018},
  journal={Applied physics},
  doi={10.1007/s00340-011-4825-4},
}
@article{UBHD-68991429,
  author={Ulmer, Stefan and Blaum, Klaus and Kracke, H. and Mooser, A. and Quint, Wolfgang and Rodegheri, C. C. and Walz, J.},
  title={Direct measurement of the free cyclotron frequency of a single particle in a penning trap},
  year={2011},
  pages={1-4},
  language={eng},
  issn={1079-7114},
  volume={107},
  note={Gesehen am 30.11.2022},
  journal={Physical review letters},
  doi={10.1103/PhysRevLett.107.103002},
}
@book{UBHD-67082882,
  author={Ulmer, Stefan},
  title={First observation of spin flips with a single proton stored in a cryogenic penning trap},
  year={2011},
  pages={VIII, 201 S.},
  language={eng},
  note={Zsfassung in engl. und dt. Sprache},
  school={Heidelberg, Univ., Diss., 2011},
  keywords={Proton / Spin flip / Penning-K{\"a}fig},
  library={UB [Signatur: 2011 U 648]},
}
@book{UBHD-67080419,
  author={Ulmer, Stefan},
  title={First observation of spin flips with a single proton stored in a cryogenic penning trap},
  year={2011},
  pages={Online-Ressource},
  language={eng},
  school={Heidelberg, Univ., Diss., 2011},
  doi={10.11588/heidok.00012306},
  keywords={Proton / Spin flip / Penning-K{\"a}fig},
  url={http://archiv.ub.uni-heidelberg.de/volltextserver/volltexte/2011/12306},
  library={UB},
}
@article{UBHD-68991439,
  author={Ulmer, Stefan and Rodegheri, C. C. and Blaum, Klaus and Kracke, H. and Mooser, A. and Quint, Wolfgang and Walz, J.},
  title={Observation of spin flips with a single trapped proton},
  year={2011},
  pages={1-4},
  language={eng},
  issn={1079-7114},
  volume={106},
  note={Gesehen am 30.11.2022},
  journal={Physical review letters},
  doi={10.1103/PhysRevLett.106.253001},
}