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By: Spassov, Nikolaï - Ivanova, Nevena - Georgiev, Kiril - Ivanov, VasilType: ArticleIn: Historia naturalis bulgaricaVolume: 14Series:Issue:Date: 2002Page Range: 123--140Publication Info: Sofiia, Bulgarska akademiia na naukite, c1989-Subjects:
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By: Spassov, Nikolaï - Georgiev, Kiril - Ivanov, Vasil - Stoev, PavelType: ArticleIn: Historia naturalis bulgaricaVolume: 10Series:Issue:Date: 1999Page Range: 133--146Publication Info: Sofiia, Bulgarska akademiia na naukite, c1989-Subjects: