Vovkunovych, M. O. “Research Retrospective on the Ecological State of Borzhava River Basin (Transcarpathian Region)”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 30 (July 24, 2024): 49-62. Accessed November 21, 2024. https://periodicals.karazin.ua/ecology/article/view/23957.