https://katalog.hgb-leipzig.de/Record/0003116027 Medioevo latino on CD-ROM : A bibliographical bulletin of European culture from Boethius to Erasmus (VI to XV century) / Società Internazionale per lo Studio del Medioevo Latino (S.I.S.M.E.L.). — Firenze : Ed. del Galluzzo, 19XX. — CD-ROM.