Asatryan, V.L., M.R. Dallakyan, I.V. Shokhin, R.M. Aroutiounian, and G.G. Matishov. 2017. “STUDY OF SUSTAINABILITY AND CONFORMITY OF FUNCTIONING OF LOTIC ECOSYSTEMS ON THE EXAMPLE OF THE DZKNAGET RIVER (ARMENIA)”. Proceedings of the YSU B: Chemical and Biological Sciences 51 (3 (244):186-92. https://doi.org/10.46991/PYSU:B/2017.51.3.186.