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By: Goutner, VassilisType: ArticleIn: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, BonnVolume: 36Series:Issue:Date: 1985Page Range: 37--50Publication Info: Bonn, Das Forschungsinstitut,Subjects:
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By: Alivizatos, H - Goutner, VassilisType: ArticleIn: The journal of raptor researchVolume: 33Series:Issue: 2Date: 1999Page Range: 160--163Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: