GUO, J.; HODGSON, M.; PAN, J. Active control of an off-axis noise source. Canadian Acoustics, [S. l.], v. 29, n. 1, p. 13–17, 2001. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1354. Acesso em: 19 oct. 2021.