@inproceedings{ZahnBerndtFehrenbach1973,
  author    = {Zahn, Helmut and Berndt, Heinz and Fehrenbach, P.},
  title     = {Synthese cyclischer Cystinpeptide mit Insulin A-und B-Kettensequenzen},
  series = {Peptides 1972 : proceedings of the Twelfth European Peptide Symposium, Reinhardsbrunn Castle, German Democratic Republic, September 1972},
  booktitle = {Peptides 1972 : proceedings of the Twelfth European Peptide Symposium, Reinhardsbrunn Castle, German Democratic Republic, September 1972},
  editor    = {Hanson, Horst},
  publisher = {North-Holland Publ. [u.a.],},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-7204-4132-3},
  pages     = {101 -- 102},
  year      = {1973},
  language  = {de}
}
@inproceedings{SchnabelBerndt1973,
  author    = {Schnabel, Eberhard and Berndt, Heinz},
  title     = {Zur selektive Abspaltbarkeit der t-Butyloxycarbonylgruppe},
  series = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  booktitle = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  editor    = {Nesvadba, H.},
  publisher = {North-Holland Publ. [u.a.]},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-7204-4120-X},
  pages     = {69 -- 70},
  year      = {1973},
  language  = {en}
}