Revue d'histoire ecclésiastique-bibliographie.
Dictionnaire d'histoire et de géographie ecclésiastiques.
International medieval bibliography.
International directory of medievalists.
International encyclopaedia for the Middle Ages.
Europa sacra.
Ut per litteras apostolicas.
In principio.
Vetus latina.
Library of Latin texts.
Monumenta Germaniae historica.
Database of Latin dictionaries.
Bibliography of British and Irish history.
Dictionary of Medieval Latin from British Sources