KING, F. . S. Model Study of Double Traffid Noise Barriers. Canadian Acoustics, [S. l.], v. 9, n. 1, p. 30–36, 1981. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/452. Acesso em: 18 nov. 2024.