VATISTAS, G. H. The sound that vortices within vortices make. Canadian Acoustics, [S. l.], v. 35, n. 3, p. 194–195, 2007. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1965. Acesso em: 5 dec. 2021.