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  1. By: Ayala, Stephen C.
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 43
    Date: 1986
    Page Range: 160--162
    Publication Info: London International Trust for Zoological Nomenclature
  2. By: Ayala, Stephen C. - Williams, Ernest E. (Ernest Edward)
    Type: Article
    In: Breviora
    Volume: 490
    Date: 1988
    Page Range: 1--16
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-