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  1. By: Heath, Alan - Claassens, A. J. M.,
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 57
    Issue: 1
    Date: 2003
    Page Range: 1--16
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-
  2. By: Claassens, A. J. M.,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 86
    Date: 1974
    Page Range: 253--258
    Publication Info: [London s.n
  3. By: Claassens, A. J. M., - Dickson, C G C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 98
    Date: 1986
    Page Range: 1--4
    Publication Info: [London s.n
  4. By: Claassens, A. J. M.,
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 109
    Date: 1966
    Page Range: 1--33
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  5. By: Claassens, A. J. M., - Dickson, C G C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 98
    Date: 1986
    Page Range: 4--6
    Publication Info: [London s.n