RIBOLOV, Svetoslav. Byzantine Ecclesiastical Chant: a Legacy of the Holy Fathers. Forum Theologicum Sardicense, [S. l.], n. 2, p. 7–14, 2025. Disponível em: https://periodicals.uni-sofia.bg/index.php/forum-theologicum-sardicense/article/view/458. Acesso em: 12 aug. 2025.