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  1. By: Rubec, Peter J. - Qadri, S. U.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 96
    Issue: 1
    Date: 1982
    Page Range: 6--18
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Coad, Brian W. - Rubec, Peter J. - Qadri, S. U.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 2
    Date: 1974
    Page Range: 224--226
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Rubec, Peter J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 4
    Date: 1975
    Page Range: 389--399
    Publication Info: Ottawa Ottawa Field-Naturalists' Club