WELLESZ, Egon. Epilegomena zu den "Eastern Elements in Western Chant". Die Musikforschung, [S. l.], v. 5, n. 2/3, p. 131–137, 2021. DOI: 10.52412/mf.1952.H2/3.2813. Disponível em: https://mf.journals.qucosa.de/mf/article/view/2813. Acesso em: 27 nov. 2024.