@article{UBHD-68234074,
  author={K{\"o}hler, Thomas and Pritzkow, Hans and Siebert, Walter},
  title={(3+1)-Cyclisierungen zu Tetraboraporphyrinogenen},
  year={2014},
  pages={1101-1107},
  language={eng},
  issn={1865-7117},
  volume={57},
  number={10},
  note={Gesehen am 19.03.2018 ; DeGruyter: Elektronische Reproduktion der Druckausgabe ; Herrn Prof. Dr. K. Wieghardt zum 60. Geburtstag gewidmet.},
  journal={Zeitschrift f{\"u}r Naturforschung},
  doi={10.1515/znb-2002-1004},
}
@article{UBHD-68234078,
  author={K{\"o}hler, Thomas and Faderl, J{\"u}rgen and Pritzkow, Hans and Siebert, Walter},
  title={Synthesis and properties of bis(2‐heteroaryl)borane derivatives},
  year={2002},
  pages={2942-2946},
  language={eng},
  issn={1099-0682},
  number={11},
  note={Gesehen am 19.03.2018 ; Dedicated to Professor Gottfried Huttner on the occasion of his 65th birthday.},
  journal={European journal of inorganic chemistry},
  doi={10.1002/1099-0682(200211)2002:11<2942AID-EJIC2942>3.0.CO;2-P},
}