SCHNEIDER, J. New Instruments through Frequency Division. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 15, 1977. DOI: 10.25602/GOLD.cj.v0i15.1046. Disponível em: https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal15_p18-21. Acesso em: 25 apr. 2024.