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  1. By: Koepcke, Maria - Koepcke, Hans Wilhelm
    Publication info: New York, N.Y, American Museum of Natural History, [1961]
    Holding Institution: American Museum of Natural History Library
  2. By: Koepcke, Hans Wilhelm - Koepcke, Maria
    Publication info: 1961
    Holding Institution: American Museum of Natural History Library
  1. By: Koepcke, Hans Wilhelm
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 7
    Date: 1956
    Page Range: 151--185
    Publication Info: Bonn, Das Forschungsinstitut,