1.
Беляєвський ЛC, Лазарев ГМ, Харченко ВП. Development perspectives of the system of aeronavigational service of Ukraine. Proceedings of National Aviation University [Internet]. 1998 Jan. 30 [cited 2024 Apr. 28];1(1):110-21. Available from: https://jrnl.nau.edu.ua/index.php/visnik/article/view/10949