@article{Groenke1996,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Reiz- und Bewegungsphysiologie},
  isbn      = {3-06-012155-9},
  year      = {1996},
  language  = {de}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Pflanzenfamilien},
  isbn      = {3-06-010523-5},
  year      = {1997},
  language  = {de}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Pflanzenfamilien},
  isbn      = {3-06-010522-7},
  year      = {1997},
  language  = {de}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Samenpflanzen},
  isbn      = {3-06-010523-5},
  year      = {1997},
  language  = {de}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Symjency},
  isbn      = {3-7420-1115-4},
  year      = {1997},
  language  = {mul}
}
@article{Groenke1997,
  author    = {Gr{\"o}nke, Ottokar},
  title     = {Samenpflanzen},
  isbn      = {3-06-010522-7},
  year      = {1997},
  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{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      = {3-06-010531-6},
  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}
}