Osadchiy, V., Osadcha, N., Kovalchuk, L. and Skrynyk, O. (2024) “ The stochastic process of changing the concentration of ammonia nitrogen in the Desna river ”, Reports of the National Academy of Sciences of Ukraine. Kyiv, Ukraine, (10), pp. 60–66. doi: 10.15407/dopovidi2016.10.060.