ЛУППО, О. Є.; ПІГУР, Я. А. Definition of indicators to assess the operational safety and environment definition of the elements of air navigation systems. Proceedings of National Aviation University, [S. l.], v. 55, n. 2, p. 27–32, 2013. DOI: 10.18372/2306-1472.55.5404. Disponível em: https://jrnl.nau.edu.ua/index.php/visnik/article/view/5404. Acesso em: 1 may. 2024.