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  1. By: Austin, Matthew A. - Obbard, Martyn E. - Kolenosky, George B.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 2
    Date: 1994
    Page Range: 236--238
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Obbard, Martyn E. - Brooks, Ronald J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 3
    Date: 1981
    Page Range: 350--352
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Usui, Masayuki - Kevan, Peter G., - Obbard, Martyn E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 119
    Issue: 1
    Date: 2005-01-01
    Page Range: 48--57
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Obbard, Martyn E. - Down, Norman E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 98
    Issue: 2
    Date: 1984
    Page Range: 254--255
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Romain, Derrick A. - Obbard, Martyn E. - Atkinson, James L.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 127
    Issue: 2
    Date: 2013-10-24
    Page Range: 118--130
    Publication Info: Ottawa Ottawa Field-Naturalists' Club