1.
DALKA P, KOSTEK B, CZYƻEWSKI A. Vowel recognition based on acoustic and visual features. Arch. Acoust. [Internet]. 2006 Sep. 30 [cited 2026 Mar. 4];31(3):275-88. Available from: https://acoustics.ippt.gov.pl/index.php/aa/article/view/673