CONTACT (1972), C. (1972). Interview with Zigmund Long. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 5, 1972. DOI: 10.25602/GOLD.cj.v0i5.898. Disponível em: https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal05_p30-31. Acesso em: 2 may. 2024.