Safonyk, A. P., M. I. Klepach, and I. M. Targoniy. “RESEARCH AND AUTOMATION OF BIOLOGICAL REACTORS OF EFFLUENT WITH THE OXYGEN CONCENTRATION CONTROL”. Radio Electronics, Computer Science, Control, no. 3, Nov. 2017, pp. 192-7, doi:10.15588/1607-3274-2017-3-21.