SODI, Manlio; BAROFFIO, Giacomo; TONIOLO, Alessandro. The Concordantia of the three great sacramentaries: Gregorian, Veronese and Gelasian. Saeculum Christianum. Pismo Historyczne, [S. l.], v. 22, p. 256–274, 2021. DOI: 10.21697/sc.2015.22.21en. Disponível em: https://czasopisma.uksw.edu.pl/index.php/sc/article/view/8585. Acesso em: 5 grudz. 2025.