KAJACKAS, A.; ANSKAITIS, A. Investigation the Ability of Objective Measures of the Perceptual Speech Quality in Mobile Networks. Elektronika ir Elektrotechnika, [S. l.], v. 63, n. 7, p. 10-15, 2005. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10489. Acesso em: 5 oct. 2022.