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  1. By: Okamoto, Hanjiro
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 29
    Date: 1910
    Page Range: 57--65
    Publication Info: Wien, E. Reitter [etc.],
  2. By: Okamoto, Hanjiro
    Type: Article
    In: Zoologischer Anzeiger
    Volume: 37
    Date: 1911
    Page Range: 293--302
    Publication Info: Jena VEB Gustav Fischer Verlag
  3. By: Okamoto, Hanjiro
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 30
    Date: 1911
    Page Range: 221--222
    Publication Info: Wien, E. Reitter [etc.],
  4. By: Okamoto, Hanjiro
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 29
    Date: 1910
    Page Range: 275--300
    Publication Info: Wien, E. Reitter [etc.],
  5. By: Okamoto, Hanjiro
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 29
    Date: 1910
    Page Range: 255--263
    Publication Info: Wien, E. Reitter [etc.],
  6. By: Okamoto, Hanjiro
    Type: Article
    In: Transactions of the Sapporo Natural History Society
    Volume: 8
    Date: 1921
    Page Range: 45--50
    Publication Info: Sapporo, Japan, Sapporo Natural History Society, Hokkaido Imperial University,
  7. By: Okamoto, Hanjiro
    Type: Article
    In: Entomologische Mitteilungen
    Volume: 3
    Date: 1914
    Page Range: 23--25
    Publication Info: [Berlin, Deutsches Entomologisches Institut der Kaiser Wilhelm-gesellschaft, 1912-1928]