STEINITZ, R. Composers Today: George Crumb. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 15, 1977. DOI: 10.25602/GOLD.cj.v0i15.1043. Disponível em: https://bjmh.gold.ac.uk/index.php/contactjournal/article/view/contactjournal15_p11-13. Acesso em: 21 nov. 2024.