ЛАДИГІНА, О. А. Method of detecting covert traffic noise frequency. Problems of Informatization and Control, [S. l.], v. 2, n. 50, p. 86–90, 2015. DOI: 10.18372/2073-4751.2.8947. Disponível em: http://jrnl.kai.edu.ua/index.php/PIU/article/view/8947. Acesso em: 13 jun. 2026.