PROKIPČÁKOVÁ, M. Handwritten Irmologia – an innovative means of the transmission of liturgical music in the Carpathian area. Journal of the International Society for Orthodox Music, [S. l.], v. 3, p. 253–263, 2020. Disponível em: https://journal.fi/jisocm/article/view/88738. Acesso em: 1 aug. 2021.