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  1. By: Arreguín-S., María de la Luz - Fernández-Nava, Rafael - Leonor Quiroz, David - Acosta-Castellanos, Salvador
    Type: Article
    In: Polibotánica
    Date: 2009-09-01
    Subjects: análisis de agrupación  distribución ecológica  pteridófitas  Valle de México