SALISSOU, Y.; PANNETON, R. An index of heterogeneity of sound absorbing porous materials. Canadian Acoustics, [S. l.], v. 35, n. 3, p. 196–197, 2007. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1966. Acesso em: 20 may. 2024.