KACPROWSKI, Janusz; MIKIEL, Władysław; SZEWCZYK, Alicja. Acoustical modelling of cleft palate. Archives of Acoustics, [S. l.], v. 1, n. 2, p. 137–158, 1976. Disponível em: https://acoustics.ippt.gov.pl/index.php/aa/article/view/3510. Acesso em: 4 mar. 2026.