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  1. By: Heer, O
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 12
    Series: 5
    Date: 1883
    Page Range: 426--426
    Publication Info: London Taylor and Francis, Ltd
  2. By: Heer, O
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 14
    Series: 3
    Date: 1864
    Page Range: 465--467
    Publication Info: London Taylor and Francis, Ltd
  3. By: Heer, O
    Type: Article
    In: Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich
    Volume: 1
    Date: 1856
    Page Range: 1--40
    Publication Info: Zürich Fäsi & Beer
  4. By: Heer, O
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 1
    Series: 4
    Date: 1868
    Page Range: 61--69
    Publication Info: London Taylor and Francis, Ltd
  5. By: Heer, O
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 17
    Series: 2
    Date: 1856
    Page Range: 322--333
    Publication Info: London Taylor and Francis, Ltd