1. Afanas’ev, S.A., Protasov, A.A., Sinitsyna, O.O., and Yanakaev, A.Yu., Zooperiphyton communities of rapids and reach areas of the Southern Bug River, in Voprosy gidrobiologii vodoemov Ukrainy (Problems of Hydrobiology of Water Bodies of Ukraine), Kiev: Naukova Dumka, 1988, p. 68.
2. Annandale, N., Description of a freshwater sponge from the North-West of Siberia, Mem. Ac. Imp. Sc.
Petrograd. Ser. 8, 1915, vol. 28, no. 9, p. 1.
3. Bakanov, A.I., Kolichestvennaya Otsenka dominirovaniya v ekologicheskikh soobshchestvakh (Quantitative Assessment of Dominance in Ecological Communities), Available from VINITI, 1987, no. 8593-I87.
4. Burmakin, E.V., Forage resources of the Gydan Bay and adjacent water bodies, in Ryby i rybolovstvo v basseine Gydanskogo zaliva (Fishes and Fishing in the Gydan Bay Basin), Tr. Nauchno-Issled. Inst. Polyarn. Zemled., Zhivotnovod. Promysl. Khoz., Ser. Promysl. Khoz., no. 15, p. 159.
5. Butorin, N.V., Gidrologicheskie protsessy i dinamika vodnykh mass v vodokhranilishchakh Volzhskogo kaskada (Hydrological Processes and Dynamics of Water Masses in the Reservoirs of the Volga Cascade), Leningrad: Nauka, 1969.