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Zhidkova, L. S.; Kuzina, I. N.; Lautenschläger, F. G.; Popova, L. A. (1968). Atlas mollyuskov verkhnego miotsena i pliotsena Sakhalina [Atlas of the mollusks of the Upper Miocene and Pliocene of Sakhalin]. Nauka, Moskva, 180 pp. + 50 pls.