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  1. By: Wuerthner, George
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 1
    Date: 1990
    Page Range: 158--159
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Wuerthner, George
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 1
    Date: 1993
    Page Range: 132--133
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Wuerthner, George
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 148--148
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Wuerthner, George
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 2
    Date: 1992
    Page Range: 281--281
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Wuerthner, George
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 1
    Date: 1990
    Page Range: 157--158
    Publication Info: Ottawa Ottawa Field-Naturalists' Club