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  1. DISTRIBUTION AND COLOR VARIATION OF GYRFALCONS IN RUSSIA
    By: Ellis, David H - Ellis, C H - Pendleton, G W - Panteleyev, A V - Rebrova, I V - Markin, Y M
    Type: Article
    In: Journal of Raptor Research
    Volume: 26
    Issue: 2
    Date: 1992
    Page Range: 81--88
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  2. THE MECHANISM OF EXTENSION IN THE LEGS OF SPIDERS
    By: Ellis, C H
    Type: Article
    In: Biol Bull
    Volume: 86
    Date: 1944-02-01
    Page Range: 41--50
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