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  1. By: Stemmler, O
    Type: Article
    In: Revue suisse de zoologie
    Volume: 78
    Date: 1971
    Page Range: 783--791
    Publication Info: Genève, Kundig [etc.],
  2. By: Stemmler, O
    Type: Article
    In: Revue suisse de zoologie
    Volume: 77
    Date: 1970
    Page Range: 273--282
    Publication Info: Genève, Kundig [etc.],
  3. By: Kramer, Eugen - Stemmler, O
    Type: Article
    In: Revue suisse de zoologie
    Volume: 93
    Date: 1986
    Page Range: 779--802
    Publication Info: Genève, Kundig [etc.],