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  1. By: Christiaens, Joseph
    Type: Article
    In: Apex
    Volume: 1
    Date: 1986
    Page Range: 97--127
    Publication Info: Bruxelles, La Société, 1986-
  2. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 38
    Series: 2
    Issue: 6
    Date: 1967-04-21
    Page Range: 898--902
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  3. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 38
    Series: 2
    Issue: 6
    Date: 1967-04-21
    Page Range: 903--903
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  4. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 39
    Series: 2
    Issue: 5
    Date: 1968-04-25
    Page Range: 970--978
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  5. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 182
    Series: 3
    Issue: 121
    Date: 1973
    Page Range: 1305--1392
    Publication Info: Paris,
  6. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 37
    Series: 2
    Issue: 3
    Date: 1965
    Page Range: 490--491
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  7. By: Christiaens, Joseph
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 40
    Series: 2
    Issue: 2
    Date: 1968-10-31
    Page Range: 366--373
    Publication Info: Paris, Imprimerie nationale, 1907-1971