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  1. By: Sumakov, Grigoriĭ,
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 22
    Date: 1903
    Page Range: 47--48
    Publication Info: Wien, E. Reitter [etc.],
  2. By: Sumakov, Grigoriĭ,
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 27
    Date: 1908
    Page Range: 162
    Publication Info: Wien, E. Reitter [etc.],