Koreneva, Ye. V. (1980): Palinologicheskiye issledovaniya pozdnekaynozoyskikh otlozheniy Palynological studies of upper Cenozoic deposits. Izd. Nauka, Moscow, USSR, In: Neprochnov, Yu. P. (editor), Geologicheskaya istoriya Chernogo morya po rezul'tatam glubokovodnogo bureniya The geologic history of the Black Sea from the results of deep-sea drilling, 64-70, georefid:1982-002975