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Beisel A.L. (1983). Late Jurassic and Early Cretaceous gastropods of the North of Middle Siberia. Moscow: Nauka. 95 p. [in Russian].
Beisel A.L. (1983). Late Jurassic and Early Cretaceous gastropods of the North of Middle Siberia. Moscow: Nauka. 95 p. [in Russian].