NIGHTINGALE, T.; QUIRT, J. Preliminary results of a systematic study of sound transmission through a cavity wall assembly. Canadian Acoustics, [S. l.], v. 27, n. 3, p. 58–59, 1999. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1217. Acesso em: 29 jun. 2022.