Foraminifera source request

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Maslov V.P. [Маслов В.П.]. (1958). Find in the Jurassic of the Crimea of the genus Coscinoconus Leupold and its true nature [Находка в Юре Крыма рода Coscinoconus Leupold и его истинная природа]. Proceedings of the USSR Academy of Sciences [Доклады Академии наук СССР]. 124(3): 545-548.