SCHAFER, R. M. URSOUND: A FRAGMENT. The Capilano Review, [S. l.], v. 1, n. 31, p. 48–49, 1984. Disponível em: https://capreview.journals.publicknowledgeproject.org/index.php/capreview/article/view/902. Acesso em: 16 sep. 2026.