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  1. By: De Balsac, Henri Heim
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 5
    Series: 2
    Issue: 4
    Date: 1933-04
    Page Range: 261--268
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  2. By: De Balsac, Henri Heim
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 5
    Series: 2
    Issue: 5
    Date: 1933-06
    Page Range: 355--359
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  3. By: De Balsac, Henri Heim
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 6
    Series: 2
    Issue: 6
    Date: 1934-11
    Page Range: 482--489
    Publication Info: Paris, Imprimerie nationale, 1907-1971