Bayerische Staatsbibliothek, Cod. Gall. 3 Vd. con rif. al Volto Santo di Lucca: - Bates, David e Curry, Anne, England and Normandy in the Middle Ages, A&C Black, 1994, p. 299-300. - Croenen, Godfried e Ainsworth, Peter F. Patrons, Authors and Workshops: Books and Book Production in Paris Around 1400, Peeters Publishers, 2006, p. 110.