KUJUMDZIEVA, S. Little-Known Indications of Musical Performance from the Fifteenth Century and Their Historical Context. Journal of the International Society for Orthodox Music, [S. l.], v. 4, n. 1, p. 128–139, 2020. Disponível em: https://journal.fi/jisocm/article/view/88253. Acesso em: 20 apr. 2024.