Anna V. Mikhailenko, Yury Fedorov, Irina Dotsenko. ELEMENTS OF MERCURY BALANCE IN THE CASCADE WATER SYSTEM OF THE DON RIVER. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Ecology, Economics, Education and Legislation, 2020, pp. 291-298. https://doi.org/10.5593/sgem2020/5.1/s20.037