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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Billen, Wolfgang
    Type: Article
    In: Nota lepidopterologica
    Volume: 16
    Date: 1994
    Page Range: 212--212
    Publication Info: Bonn,
  2. By: Billen, Wolfgang
    Type: Article
    In: Nota lepidopterologica
    Volume: 16
    Date: 1994
    Page Range: 240--240
    Publication Info: Bonn,