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Mollov, Ivelin A.,. Urban ecology studies of the amphibians and reptiles in the city of Plovdiv, Bulgaria / by Ivelin A. Mollov. — 1 online resource. — Доступ по паролю из сети Интернет (чтение, печать, копирование). — <URL:https://elib.spbstu.ru/ebsco/pdf/2254635.pdf>. — Текст: электронный
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