MANN, J. D. Juan de Segovia’s "Epistola ad Guillielmum de Orliaco de quatuor hostibus": who was Guillielmus de Orliaco?. Archivum Fratrum Praedicatorum, [S. l.], v. 62, p. 175–193, 1992. Disponível em: https://heyjoe.fbk.eu/index.php/afp/article/view/8098. Acesso em: 12 mar. 2026.