HEATON, R. New York, October - December 1981. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 24, 1982. DOI: 10.25602/GOLD.cj.v0i24.1206. Disponível em: https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal24_p37-39. Acesso em: 2 mar. 2024.