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  1. By: Pérez-Hidalgo, Nicolás - Umaran, Ángel - Mier Durante, M. Pilar
    Type: Article
    In: ZooKeys
    Volume: 89
    Date: 2011
    Page Range: 49-56
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: adventive species  Aphids  Europe  Schizaphis piricola  Spain