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  1. By: John, Hans
    Type: Article
    In: Bulletin of the British Museum (Natural History) Entomology
    Volume: 3
    Date: 1954
    Page Range: 297--313
    Publication Info: London, The Museum, 1950-1977
  2. By: John, Hans
    Type: Article
    In: Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum
    Volume: 50
    Date: 1967
    Page Range: 163--168
    Publication Info: Cape Town, South African Museum, 1898-2004