Блохін, Л. М., С. В. Держак, and Н. В. Білак. “EFFICIENCY COMPARISON NON-OPTIMAL SYSTEM AND STABILIZATION SYSTEM WITH OPTIMIZED REGULATOR PARAMETERS”. Proceedings of National Aviation University, vol. 15, no. 4, Apr. 2021, pp. 132-6, doi:10.18372/2306-1472.15.15317.