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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Cobben, R H
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 128
    Date: 1985
    Page Range: 215--270
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  2. By: Cobben, R H
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 96
    Date: 1953
    Page Range: 169--198
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  3. By: Cobben, R H
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 125
    Date: 1982
    Page Range: 1--24
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  4. By: Cobben, R H
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 113
    Date: 1970
    Page Range: 61--90
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  5. By: Cobben, R H
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 94
    Date: 1986
    Page Range: 194--204
    Publication Info: Lawrence, Kan Allen Press [etc.]
  6. By: Cobben, R H
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 41
    Date: 1965
    Page Range: 180--185
    Publication Info: San Francisco, Pacific Coast Entomological Society,