RACHOŃ, Jakub; PIOTROWSKI, Zbigniew; GAJEWSKI, Piotr. Authentication in VoIP Telephony with Use of the Echo Hiding Method. Journal of Telecommunications and Information Technology, [S. l.], v. 43, n. 1, p. 17–21, 2011. DOI: 10.26636/jtit.2011.1.1127. Disponível em: https://jtit.pl/jtit/article/view/1127. Acesso em: 18 apr. 2026.