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By: Koshev, Yordan - Kachmakova, Maria - Arangelov, Simeon - Ragyov, DimitarType: ArticleIn: Nature ConservationVolume: 35Series:Issue:Date: 2019Page Range: 63-95Publication Info: Pensoft Publishers 2019Subjects: european souslik high altitude mountain reinforcement Reintroduction repatriation Spermophilus citellus