Ostracods of Mesozoic deposits in the Volga-Ural region. Ostrakody Mezozoiskikh otlozhenii Volga-Uralʹskoi oblasti, Gosud. nauchno-tekhnicheskoe izdat. nefyanoi i gorno-toplivnoi literatury, Leningrad, 1955. Trudy Vsesoyuznogo neftyanogo nauchno-issledovatelʹskogo geologo-razvedochnogo instituta VNIGRI, novaya seriya, no. 84 /
Dyubimova, P. S.
Lord, A.
Boston Spa, 
1967.
[With a bibliography.]