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1by Gliwicz, Zbigniew Maciej“... systems, can be subjected only with great difficulty to the trophic classification operations (Fig 1...”
Published 1974
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2by Bujalska, Gabriela“...Pages 10-17 24 cm Bibliographical references (pages 15-16) Abstract in English This review of a...”
Published 1975
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3by Goszczyński, Jacek“... is given of methods of studying the food of predatory birds and mammals. The review made of methods used...”
Published 1972
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