SCHIFFER, B. Composer Monographs in German. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 25, 1982. DOI: 10.25602/GOLD.cj.v0i25.1218. Disponível em: https://ojs.gold.ac.uk/index.php/contactjournal/article/view/contactjournal25_p42-44. Acesso em: 4 jul. 2025.