[1]Д. В. Наливкин, "Вопросы стратиграфии СССР", PMI, т. 37, вып. 2, сс. 3-20, май 1960.

[1]D. V. Nalivkin, "Issues of Stratigraphy of the USSR", PMI, vol. 37, no. 2, pp. 3-20, May 1960.