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  1. By: Gibson, R - Crandall, Frank B.
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 48
    Date: 1991
    Page Range: 22--24
    Publication Info: London International Trust for Zoological Nomenclature
  2. By: Gibson, R
    Type: Article
    In: Telopea: Journal of plant systematics
    Volume: 15
    Date: 2013
    Page Range: 99--105
    Publication Info: Sydney Royal Botanic Garden Sydney 2012-