SNOJ, J. Fragments of Medieval Plainchant Manuscripts in Late Gothic Notation in Ljubljana. Musicological Annual, [S. l.], v. 24, n. 1, p. 107–110, 1988. DOI: 10.4312/mz.24.1.107-110. Disponível em: https://revije.ff.uni-lj.si/MuzikoloskiZbornik/article/view/5215. Acesso em: 20 jun. 2021.