Ragozin, L. A. (1956). O biostratigraficheskom znachenii peletsipod iz uglenosnykh otlozheniy Kuzbassa [On the biostratigraphic significance of pelecypods from coal-bearing deposits of Kuzbass]. In: Voprosy geologii Kuzbassa. Materialy Vtorogo Soveshchaniya po stratigrafii uglenosnykh otlozheniy. Ugletekhnizdat, Moskva, pp. 113-118.
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Ragozin, L. A.
1956
O biostratigraficheskom znachenii peletsipod iz uglenosnykh otlozheniy Kuzbassa [On the biostratigraphic significance of pelecypods from coal-bearing deposits of Kuzbass]
In: Voprosy geologii Kuzbassa. Materialy Vtorogo Soveshchaniya po stratigrafii uglenosnykh otlozheniy. Ugletekhnizdat, Moskva, pp. 113-118