LUNBERRY, C. Suspicious Silence: Walking Out on John Cage. Current Musicology, [S. l.], n. 94, 2012. DOI: 10.7916/cm.v0i94.5237. Disponível em: https://journals.library.columbia.edu/index.php/currentmusicology/article/view/5237. Acesso em: 5 may. 2024.