KHARCHENKO, V.; CHYNCHENKO, Y.; RAYCHEV, S. REGIONAL APPLICATION OF THE FIRST EUROPEAN AIR TRAFFIC CONTROLLER SELECTION TEST IN BULGARIA. Proceedings of National Aviation University, [S. l.], v. 29, n. 3, p. 42–45, 2006. DOI: 10.18372/2306-1472.29.1359. Disponível em: https://jrnl.nau.edu.ua/index.php/visnik/article/view/1359. Acesso em: 3 may. 2024.