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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Krämer, Hermann
    Type: Article
    In: Revue suisse de zoologie
    Volume: 7
    Issue: 1
    Date: 1900
    Page Range: 143--272
    Publication Info: Genève, Kundig [etc.],
  2. By: Krämer, Hermann
    Type: Article
    In: Entomologische Rundschau
    Volume: 27
    Date: 1910
    Page Range: 34--35
    Publication Info: Stuttgart, A. Kernen, 1909-