Krainiukova , A. M., O. M. Krainiukov, and I. A. Kryvytska. “Use of Biotesting Methods for Assessing the Ecological Condition of Surface Waters”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 24, June 2021, pp. 103-16, doi:10.26565/1992-4259-2021-24-09.