КОВАЛЕВСЬКИЙ, Е.О. Using virtual satellites for navigation definitions. Proceedings of National Aviation University (archive), [S. l.], v. 36, n. 3, p. 95–98, 2008. DOI: 10.18372/2306-1472.36.1598. Disponível em: https://jrnl.kai.edu.ua/index.php/visnik/article/view/1598. Acesso em: 10 oct. 2026.