VILLARS, C. Cage and Music. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 6, 1973. DOI: 10.25602/GOLD.cj.v0i6.907. Disponível em: https://bjmh.gold.ac.uk/index.php/contactjournal/article/view/contactjournal06_p6-8. Acesso em: 3 jul. 2024.