Franke, Veronica. “PALESTRINA’S AND PORTA’S CHORAL MASS SETTINGS OF DESCENDIT ANGELUS DOMINUS: A COMPARISON”. Italian Studies in South Africa 32, no. 1 (September 27, 2019): 1–26. Accessed April 24, 2024. https://italianstudiesinsa.org/index.php/issa/article/view/90.