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  1. By: Holmgren, U
    Type: Article
    In: Breviora
    Volume: 111
    Date: 1959
    Page Range: 1--13
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-
  2. By: Holmgren, U
    Type: Article
    In: Breviora
    Volume: 109
    Date: 1959
    Page Range: 1--7
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-
  3. By: Holmgren, U
    Type: Article
    In: Breviora
    Volume: 100
    Date: 1958
    Page Range: 1--5
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-