Ragozin, L. A. (1958). Dvustvorchatyye mollyuski-Mrassiyelly v uglenosnykh otlozheniyakh Kuzbassa [Bivalve molluscs-Mrassiella in coal-bearing deposits of Kuzbass]. Acta Palaeontologica Sinica. 6(1): 1-34, pl. 1.
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Ragozin, L. A.
1958
Dvustvorchatyye mollyuski-Mrassiyelly v uglenosnykh otlozheniyakh Kuzbassa [Bivalve molluscs-<i>Mrassiella</i> in coal-bearing deposits of Kuzbass]