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  1. By: De Prins, Willy - Kok, N J J - Turelinckx, F.
    Type: Article
    In: Nota lepidopterologica
    Volume: 7
    Date: 1984
    Page Range: 71--83
    Publication Info: Bonn,
  2. By: Bronswijk, J. E. M. H. van - Kok, N J J
    Type: Article
    In: Entomologische berichten
    Volume: 35
    Issue: 1
    Date: 1975
    Page Range: 12--14
    Publication Info: Amsterdam