Amalitsky [Amalitzky], V. P. (1886). O vozraste yarusa pestrykh mergeley v Oksko-Volzhskom basseyne [On the age of the variegated marl layer in the Oka-Volga basin]. Trudy Sankt-Peterburgskogo obshchestva yestestvoispytateley. 17(1): 32–61.
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Amalitsky [Amalitzky], V. P.
1886
O vozraste yarusa pestrykh mergeley v Oksko-Volzhskom basseyne [On the age of the variegated marl layer in the Oka-Volga basin]