@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-010531-6},
  year      = {1998},
  language  = {de}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-010561-8},
  year      = {1998},
  language  = {de}
}
@article{Wolters1998,
  author    = {Wolters, Steffen},
  title     = {Das Kienfenn : ein Beitrag zur Vegetationsgeschichte},
  year      = {1998},
  language  = {de}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-012260-1},
  year      = {1998},
  language  = {de}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-010524-3},
  year      = {1998},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Farbenfroh und verg{\"a}nglich},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Eine botanische Wanderung rund um den Neuendorfer See},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Der Große Burgwall bei Havelberg : ein bemerkenswerter Pilzstandort},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Kommt Plagiothecium undulatum (HEDW) B.S.G. noch in der Niederlausitz vor?},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Ein Beitrag zur Pilzflora des G{\"o}rlsdorfer Waldes},
  year      = {1997},
  language  = {de}
}
@article{KummerJentsch1997,
  author    = {Kummer, Volker and Jentsch, Helmut},
  title     = {Elodea nuttallii (PLANCH.), St, Johan nun auch in Brandenburg},
  year      = {1997},
  language  = {de}
}
@article{OtteRaetzelKummer1997,
  author    = {Otte, Volker and R{\"a}tzel, Stefan and Kummer, Volker},
  title     = {Bemerkenswerte Flechtenfunde aus Brandenburg III},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Einige interessante Neub{\"u}rger der Potsdamer Umgebung},
  year      = {1997},
  language  = {de}
}
@book{BergstedtGroenkeMeincke1996,
  author    = {Bergstedt, Christel and Gr{\"o}nke, Ottokar and Meincke, Irmtraut},
  title     = {Biologie : Lehrbuch f{\"u}r Sekundarstufe II ; Gymnasium, Gesamtschule ; Lehrerband mit Kopiervorlagen},
  publisher = {Volk u. Wissen},
  address   = {Berlin},
  isbn      = {3-06-012155-9},
  pages     = {160 S.},
  year      = {1996},
  language  = {de}
}
@article{BuggischHoehndorfPaechetal.1996,
  author    = {Buggisch, W. and H{\"o}hndorf, A. and Paech, H.-J. and Kleinschmidt, G. and Kreuzer, H. and Weber, Bernd},
  title     = {Stephenson bastion formation (palaeontology)},
  year      = {1996},
  language  = {en}
}
@book{OPUS4-28504,
  title     = {Helgoland-Praktikum : Ergebnisse des zoologisch-meeresbiologischen Praktikums mit Studierenden der Universit{\"a}t Potsdam an der Biologischen Anstalt Helgoland},
  editor    = {Rogge, Detlev},
  publisher = {Univ.},
  address   = {Potsdam},
  year      = {1994},
  language  = {de}
}
@article{BuggischPaechWeber1996,
  author    = {Buggisch, W. and Paech, H.-J. and Weber, Bernd},
  title     = {The watts needle formation (palaeontology)},
  year      = {1996},
  language  = {en}
}
@article{Glaeser1996,
  author    = {Gl{\"a}ser, Hans-Joachim},
  title     = {Konkurrenzerfolg ist alles, alles andere ist nichts},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Der Abriß der Neuen Sch{\"a}nke},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Zur Wasserpflanzenvegetation des Neuendorfer Sees},
  year      = {1996},
  language  = {de}
}
@article{Neupert1996,
  author    = {Neupert, Dieter W. H.},
  title     = {Anwenden empirischer Erkenntnismethoden im Biologieunterricht},
  year      = {1996},
  language  = {de}
}
@article{Rogge1996,
  author    = {Rogge, Detlev},
  title     = {Kuckuck - Cuculus canorus L. 1758},
  year      = {1996},
  language  = {de}
}
@article{Rogge1996,
  author    = {Rogge, Detlev},
  title     = {Die Molluskenfauna ausgew{\"a}hlter Gew{\"a}sser der Standorte Sch{\"o}nefeld-S{\"u}d und Sperenberg},
  year      = {1996},
  language  = {de}
}
@article{Rogge1996,
  author    = {Rogge, Detlev},
  title     = {Schilfrohrs{\"a}nger - Acrocephalus schoenobaenus L. 1758},
  year      = {1996},
  language  = {de}
}
@book{Scharf1994,
  author    = {Scharf, Peter},
  title     = {Wegweiser durch die Gew{\"a}chsh{\"a}user und Freilandanlagen des Botanischen Gartens der Universit{\"a}t Potsdam},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {64 S.},
  year      = {1994},
  language  = {de}
}
@article{FischerKummerPoetsch1994,
  author    = {Fischer, Wolfgang and Kummer, Volker and P{\"o}tsch, Joachim},
  title     = {Zur Vegetation des Feuchtgebietes Internationaler Bedeutung (FIB) Untere Havel},
  year      = {1994},
  language  = {de}
}
@article{Glaeser1994,
  author    = {Gl{\"a}ser, Hans-Joachim},
  title     = {Evolutionstheorie ohne fach{\"u}bergreifende Bedeutung?},
  year      = {1994},
  language  = {de}
}
@article{GlaeserSchoenfelder1994,
  author    = {Gl{\"a}ser, Hans-Joachim and Sch{\"o}nfelder, J.},
  title     = {Zur Faunistik, Biologie und {\"O}kologie der Wasserfl{\"o}he (Crustacea, Cladocera) der Havelaue - ein Beitrag f{\"u}r einen {\"o}kosystemaren Restaurationsansatz},
  year      = {1994},
  language  = {de}
}
@article{Goetze1994,
  author    = {G{\"o}tze, Gudrun},
  title     = {Gehorsamsbereitschaft beim Menschen als Unterrichtsthema},
  year      = {1994},
  language  = {de}
}
@article{JentschKummer1994,
  author    = {Jentsch, Helmut and Kummer, Volker},
  title     = {Floristische Neufunde aus dem Spreewald},
  year      = {1994},
  language  = {de}
}
@book{KlopferPifrement1994,
  author    = {Klopfer, Klaus and Pifrement, Wolfgang},
  title     = {Aronstabgew{\"a}chse f{\"u}r Haus und Garten},
  publisher = {Urania-Verl.},
  address   = {Leipzig [u.a.]},
  year      = {1994},
  language  = {de}
}
@article{Kummer1994,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pilzfunde aus dem nordwestlichen Unterspreewald-Randgebiet},
  year      = {1994},
  language  = {de}
}
@article{Kummer1994,
  author    = {Kummer, Volker},
  title     = {Botanische Exkursion ins Wolfsbruch bei Alt T{\"o}plitz},
  year      = {1994},
  language  = {de}
}
@article{Kummer1994,
  author    = {Kummer, Volker},
  title     = {B{\"u}rgert sich Gypsophila perfoliata in Brandenburg ein?},
  year      = {1994},
  language  = {de}
}
@article{Kummer1994,
  author    = {Kummer, Volker},
  title     = {Notizen {\"u}ber einige Adventivpflanzenfunde auf dem Krausnicker M{\"u}llplatz},
  year      = {1994},
  language  = {de}
}
@article{MartinWeber1994,
  author    = {Martin, D. and Weber, Bernd},
  title     = {Oxime ether analogs of sex pheromone components of turnip moth (Agrotis segetum SCHIFFERM{\"U}LLER)},
  year      = {1994},
  language  = {en}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Arbeitstechniken beim Umgang mit Lebewesen},
  year      = {1998},
  language  = {de}
}
@article{FischerKummer1995,
  author    = {Fischer, Wolfgang and Kummer, Volker},
  title     = {Ein Beitrag zur Pilzflora der H{\"o}llenberge bei Langengrassau},
  year      = {1995},
  language  = {de}
}
@article{Glaeser1995,
  author    = {Gl{\"a}ser, Hans-Joachim},
  title     = {Man soll das Kind nicht mit dem Bade aussch{\"u}tten : zur Kritik der Gutmannschen Evolutionskonzeption},
  year      = {1995},
  language  = {de}
}
@article{Kummer1995,
  author    = {Kummer, Volker},
  title     = {Die Salzbunge (Samolus valerandi) im Bornimer Schlangenbruch wieder gefunden},
  year      = {1995},
  language  = {de}
}
@article{Kummer1995,
  author    = {Kummer, Volker},
  title     = {Usnea filipendula : ein bemerkenswerter Flechtenfund bei Krausnick},
  year      = {1995},
  language  = {de}
}
@article{ThomsonWeber1995,
  author    = {Thomson, M. R. A. and Weber, Bernd},
  title     = {A new and unusual fauna from the Blaiklock Glacier Group, Shackleton Range},
  year      = {1995},
  language  = {en}
}
@article{Weber1995,
  author    = {Weber, Bernd},
  title     = {Fossilfunde in der Shackleton Range},
  year      = {1995},
  language  = {de}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Samenpflanzen},
  isbn      = {3-06-010522-7},
  year      = {1997},
  language  = {de}
}
@article{Groenke1996,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Reiz- und Bewegungsphysiologie},
  isbn      = {3-06-012155-9},
  year      = {1996},
  language  = {de}
}
@article{KummerKuemmerlingRaetzeletal.1995,
  author    = {Kummer, Volker and K{\"u}mmerling, Heidi and R{\"a}tzel, Stefan and Otte, Volker},
  title     = {Bemerkenswerte Flechtenfunde aus Brandenburg : eine Anregung zur floristischen Arbeit},
  year      = {1995},
  language  = {de}
}
@phdthesis{Jaeckel1993,
  author    = {J{\"a}ckel, Lissy},
  title     = {Art und Exaktheit biologischer Alltagserfahrungen 10- bis 16-j{\"a}hriger Sch{\"u}ler und M{\"o}glichkeiten ihrer Nutzung im Biologieunterricht},
  address   = {Potsdam},
  pages     = {IV, 156, LXXII S. : graph. Darst.},
  year      = {1993},
  language  = {de}
}
@article{GroenkeSchuster1998,
  author    = {Gr{\"o}nke, Ottokar and Schuster, Marianne},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-010570-7},
  year      = {1998},
  language  = {de}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Bau und Lebensweise von Samenpflanzen},
  isbn      = {3-06-010563-4},
  year      = {1998},
  language  = {de}
}
@article{Groenke1998,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Pflanzenfamilien - {\"U}berschaubare Vielfalt},
  isbn      = {3-06-010562-6},
  year      = {1998},
  language  = {de}
}