TOOP, R. Donaueschingen 1983. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 28, 1984. DOI: 10.25602/GOLD.cj.v0i28.1253. Disponível em: https://bjmh.gold.ac.uk/index.php/contactjournal/article/view/contactjournal28_p40-41. Acesso em: 9 dec. 2024.