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  1. By: Hovingh, Peter
    Type: Article
    In: The Canadian field-naturalist
    Volume: 120
    Issue: 4
    Date: 2006-10-01
    Page Range: 443--451
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hovingh, Peter - Kutschera, Ulvich
    Type: Article
    In: Biodiversity journal
    Volume: 11
    Issue: 3
    Date: 2020
    Page Range: 689--698
    Publication Info: Palermo, Italy Edizioni Danaus 2010-