Terzeman, V. V., and S. M. Yurasov. “ Forecast of Organic Matter Content in the Waters of the Danube River (Kilia)”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 32 (June 14, 2025): 61-70. Accessed December 5, 2025. https://periodicals.karazin.ua/ecology/article/view/26489.