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  1. By: Degen, Edward,
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1911
    Date: 1911
    Page Range: 19--36
    Publication Info: London, Academic Press, [etc.], 1833-1965
  2. By: Degen, Edward,
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 4
    Issue: 1
    Date: 1904-07-01
    Page Range: 11--14
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  3. By: Degen, Edward,
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 3
    Issue: 4
    Date: 1904-04-02
    Page Range: 201--207
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-