LIZUNOV, S.; FILOBOK, E. PROTECTING SPEECH INFORMATION USING ACTIVE SOUND CANCELING SYSTEMS. Ukrainian Information Security Research Journal, [S. l.], v. 23, n. 1, p. 20–25, 2021. DOI: 10.18372/2410-7840.23.14959. Disponível em: https://jrnl.nau.edu.ua/index.php/ZI/article/view/14959. Acesso em: 2 feb. 2026.