(en) A.L.F. Rivet, Aspects of the Notitia Dignitatum : Papers Presented to the Conference in Oxford, December 13 to 15, 1974, British Archaeological Reports, , 224 p. (ISBN978-0-904531-58-9, lire en ligne), p. 119
(en) M. Brett et Kathleen G. Cushing, Readers, Texts, and Compilers in the Earlier Middle Ages: Studies in Medieval Canon Law in Honour of Linda Fowler-Magerl, Ashgate Publishing, Ltd., , 205 p. (ISBN978-0-7546-6235-8, lire en ligne), p. 3-14