SHVETS, Iryna. The formation of the Byzantine church voice system in the VIII-X centuries: historical and cultural analysis. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, [S. l.], n. 28, p. 81–85, 2019. DOI: 10.31652/2411-2143-2019-28-81-85. Disponível em: https://vspu.net/nzhist/index.php/nzhist/article/view/582.. Acesso em: 2 may. 2024.