“Assessment of Surface Water Quality of the Seversky Donets River Within Kharkiv Region in 2024”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 34 (May 30, 2026): 79–94. Accessed October 25, 2026. https://periodicals.karazin.ua/ecology/article/view/29512.