Lesnikova, Polina S. “Changes in the Macroelemental Composition of River Waters in Contrast Geological Conditions, Sochi River of the Black Sea Coast of Russia”. Proceedings of Voronezh State University. Series: Geography. Geoecology0, no. 3 (November 6, 2023): 47-56. Accessed December 5, 2025. https://journals.vsu.ru/geo/article/view/11587.