QoS Analysis in IMS Network. Elektronika ir Elektrotechnika, [S. l.], v. 112, n. 6, p. 43–46, 2011. DOI: 10.5755/j01.eee.112.6.442. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/442.. Acesso em: 5 dec. 2025.