Чайковский, Иван, Игорь Пуляева, and Владимир Окулов. “SAFETY OF NAVIGATION AND MOBILE COMMUNICATIONS”. Modern engineering and innovative technologies 2, no. 06-02 (December 29, 2017): 37–42. Accessed May 2, 2024. https://moderntechno.de/index.php/meit/article/view/meit06-02-027.