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  1. By: Havelka, J - Winkler, Josef
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 96
    Date: 1953
    Page Range: 53--56
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  2. By: Havelka, J
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 99
    Date: 1956
    Page Range: 47--54
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  3. By: Lee, S - Holman, J - Havelka, J
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 104
    Date: 2002
    Page Range: 447--457
    Publication Info: Washington, etc, Entomological Society of Washington,