1. N. A. Aibulatov, P. O. Zavialov, and V. V. Pelevin, “Peculiarities of hydrophysical self-purification of Russian coasts of the Black Sea near river estuaries,” Geoekologiya, No. 4, 301–310 (2008).
2. E. M. Al’tman and N. I. Kumysh, “Long-term intraspecific variability of the freshwater balance in the Black Sea,” Tr. Gos. Okeanogr. Inst., No. 176, 3–18 (1986).
3. M. M. Amirkhanov, N. S. Lukashina, and A. P. Trunev, Natural Recreation Resources, Environmental Conditions, and Economic-Legal Status of the Coastal Resorts (Ekonomika, Moscow, 1997) [in Russian].
4. Hydrometeorology and Hydrochemistry of the USSR Seas, Vol. 4: The Black Sea, No. 1: Hydrometeorological Conditions (Gidrometeoizdat, Leningrad, 1991) [in Russian].
5. GOST (State Standard) 17.1.5.05-85: Interstate Standard. Nature Protection. Hydrosphere. General Sampling Rules of Surface and Marine Waters, Ice, and Atmospheric Precipitation (Izd. Standartov, Moscow, 2003) [in Russian].