V. I. Osadchiy, N. N. Osadcha, L. A. Kovalchuk, and O. Y. Skrynyk, “ The modelling of bifurcations of the statistical distributions of the concentrations of ammonia nitrogen in the river Desna ”, Dopov. Nac. akad. nauk Ukr., no. 9, pp. 88–93, Nov. 2024.