Research of Biogenic Substances Concentrations and their Connection with Runoff of the Siverskiy Donets River in the Borders of the Kharkiv Area. Visn.Karazin KhNU Ser. Ekology [Internet]. 2019 Jun. 8 [cited 2026 Oct. 25];(20):104-15. Available from: https://periodicals.karazin.ua/ecology/article/view/12966