Gladenkov, Y. B.; Sinelnikova, V. N. (1990). Mollyuski i klimaticheskie optimumy miotsena Kamchatki [= Mollusks and the climatic optima of the Miocene of Kamchatka]. Trudy Geologicheskogo Instituta AN SSSR. 453, 1-174. In Russian.
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Gladenkov, Y. B.; Sinelnikova, V. N.
1990
Mollyuski i klimaticheskie optimumy miotsena Kamchatki [= Mollusks and the climatic optima of the Miocene of Kamchatka]