Ivanov, Volodymyr, Alexander Zadorozhniy, and Ilya Myakishev. “BEATS IN THE HELICOPTER RADIO CHANNEL OF ONE-BAND SIGNAL”. Proceedings of National Aviation University 78, no. 1 (May 17, 2019): 50–53. Accessed November 27, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/13654.