1. Possible ‘cromerian complex’ equivalent sequences in the Russian plain;Alekseev,1996
2. Atlas of Nature and Natural Resources of UkSSR,1978
3. Ichthyofauna of the Dnieper, Southern Bug Rivers and Dnipro-Bug Liman;Ambros,1956
4. Geography of the Soviet Carpathians;Anuchin,1956
5. Composition of ichthyofauna of the river Don upstream of Tsimlyansk dam;Archipov,2002