Гусар ОА, Літвінчук БС. OFFICIAL RELATIONS IN THE PERFORMANCE OF TECHNICAL INVESTIGATION, MAINTENANCE AND ORGANIZATION OF AIR TRAFFIC. ASL [Internet]. 2021 Mar. 31 [cited 2026 Jun. 14];1(58):16-22. Available from: http://jrnl.kai.edu.ua/index.php/UV/article/view/15303