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  1. By: Olynyk, J. - Freitag, R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 4
    Date: 1977
    Page Range: 401--402
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Olynyk, J. - Freitag, R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 1
    Date: 1979
    Page Range: 79--81
    Publication Info: Ottawa Ottawa Field-Naturalists' Club