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  1. By: Hadorn, Ernst, - Walker, Ilse
    Type: Article
    In: Revue suisse de zoologie
    Volume: 67
    Date: 1960
    Page Range: 216--225
    Publication Info: Genève Kundig [etc.]
  2. By: Walker, Ilse
    Type: Article
    In: Revue suisse de zoologie
    Volume: 68
    Date: 1961
    Page Range: 252--263
    Publication Info: Genève Kundig [etc.]
  3. By: Walker, Ilse
    Type: Article
    In: Revue suisse de zoologie
    Volume: 69
    Date: 1962
    Page Range: 209--227
    Publication Info: Genève Kundig [etc.]
  4. By: Lüscher, M - Walker, Ilse
    Type: Article
    In: Revue suisse de zoologie
    Volume: 70
    Date: 1963
    Page Range: 304--311
    Publication Info: Genève Kundig [etc.]