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[1] José Luis Vicente González: La gestión del lobo ibérico (Canis Iupus signatus Cabrera, 1907), en una población “estable” p. 237
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Canela, Andoni (12 November 2013). "Guerra al lobo: no hay tregua" [War against the wolf: No respite]. quesabesde.com (in Spanish). Archived from the original on 13 November 2013.