Sobolev , V. V., S. M. Usherenko, and K. Y. Choi. “DEGRADATION OF CONTROL ELEMENTS IN LONG FLIGHT CONDITIONS”. Problems of Informatization and Management, vol. 2, no. 11, Nov. 2021, pp. 203-6, https://jrnl.kai.edu.ua/index.php/PIU/article/view/16054.