Беляєвський Л. C.; ЛАЗАРЕВ, Г. М.; ХАРЧЕНКО, В. П. Development perspectives of the system of aeronavigational service of Ukraine. Proceedings of National Aviation University (archive), [S. l.], v. 1, n. 1, p. 110–121, 1998. DOI: 10.18372/2306-1472.1.10949. Disponível em: http://jrnl.kai.edu.ua/index.php/visnik/article/view/10949. Acesso em: 13 apr. 2026.