BALBONAS, D.; DAUNYS, G. Classification of Phonemes using Sound and Visual Information. Elektronika ir Elektrotechnika, [S. l.], v. 61, n. 5, p. 68-70, 2005. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10432. Acesso em: 28 mar. 2024.