Rubtsov Н. В. IP-Telephony Vulnerability Rating Criteria. Vestnik IzhGTU imeni M.T. Kalashnikova, [S. l.], n. 1, p. 115–116, 2012. Disponível em: https://izdat.istu.ru/index.php/vestnik/article/view/2399. Acesso em: 3 jul. 2024.