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  1. By: Langkavel, B
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 3
    Date: 1888
    Page Range: 336--347
    Publication Info: Jena [Germany], G. Fischer,
  2. By: Langkavel, B
    Type: Article
    In: Zoologische Jahrbücher.
    Volume: 2
    Date: 1887
    Page Range: 117--126
    Publication Info: Jena (Germany : G. Fischer, 1886-87.
  3. By: Langkavel, B
    Type: Article
    In: Zoologische Jahrbücher.
    Volume: 1
    Date: 1886
    Page Range: 703--722
    Publication Info: Jena (Germany : G. Fischer, 1886-87.
  4. By: Langkavel, B
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 10
    Date: 1898
    Page Range: 33--55
    Publication Info: Jena [Germany], G. Fischer,