Liber pontificalis ecclesiae Ravennatis,

 Auteur: Agnellus of Ravenna  Collection: éd. Mauskopf Deliyannis (Deborah), The Book of Pontiffs of the Church of Ravenna  Editeur: Washington, The Catholic University of America Press  Année: 2004  N. Inventaire: 2101  Cote: S AGNE  N. pages: 369 p.