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  1. By: Banasch, Ursula - Goossen, J. Paul - Riez, Alberto Einstein - Casler, Clark - Barradas, Romeo Dominguez
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 4
    Date: 1992
    Page Range: 493--498
    Publication Info: Ottawa Ottawa Field-Naturalists' Club