POP, Claudia. “MARTIN LUTHER AND THE PROTESTANT CHORAL”. Studia Universitatis Babeș-Bolyai Musica 55, no. 1 (June 30, 2010): 41–47. Accessed February 22, 2025. https://studia.reviste.ubbcluj.ro/index.php/subbmusica/article/view/8951.