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  1. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 22
    Series: 2
    Issue: 6
    Date: 1950
    Page Range: 746--752
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  2. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 22
    Series: 2
    Issue: 5
    Date: 1950-10
    Page Range: 596--602
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  3. By: Steffan, J R
    Type: Article
    In: Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie
    Volume: 4
    Issue: 2
    Date: 1951
    Page Range: 51--86
    Publication Info: Paris, Éd. du Muséum, 1950-1992
  4. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 23
    Series: 2
    Issue: 6
    Date: 1951
    Page Range: 624--629
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  5. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 23
    Series: 2
    Issue: 4
    Date: 1951-06
    Page Range: 375--380
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  6. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 24
    Series: 2
    Issue: 3
    Date: 1952-05
    Page Range: 288--293
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  7. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Series: 2
    Issue: 6
    Date: 1954-12-01
    Page Range: 667--673
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  8. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 28
    Series: 2
    Issue: 2
    Date: 1956-03
    Page Range: 191--198
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  9. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 30
    Series: 2
    Issue: 6
    Date: 1958-11
    Page Range: 506--512
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  10. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 33
    Series: 2
    Issue: 2
    Date: 1961-06-30
    Page Range: 197--201
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  11. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 38
    Series: 2
    Issue: 4
    Date: 1966-11-15
    Page Range: 400--408
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  12. By: Steffan, J R
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 40
    Series: 2
    Issue: 3
    Date: 1969-01-31
    Page Range: 492--496
    Publication Info: Paris, Imprimerie nationale, 1907-1971