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  1. By: Becquerel, Paul
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Series: 2
    Issue: 4
    Date: 1954-09-01
    Page Range: 534--536
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  2. By: Becquerel, Paul
    Type: Article
    In: Bulletin de la Société botanique de France
    Volume: 60
    Date: 1913
    Page Range: 177--186
    Publication Info: Paris, La Société, 1854-1978
  3. By: Becquerel, Paul
    Type: Article
    In: Bulletin de la Société botanique de France
    Volume: 58
    Date: 1911
    Page Range: 376--378
    Publication Info: Paris, La Société, 1854-1978