lena Mitryasova. "COMPARATIVE ANALYSIS OF THE SURFACE WATER ENVIRONMENTAL STATUS." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Nano, Bio, Green and Space: Technologies for Sustainable Future, 2019, pp. 101-108. https://doi.org/10.5593/sgem2019/6.1/s24.013