@book{ title = "Écritures du passé", author = "Mathey-Maille, Laurence", year = "2007", publisher = "Champion", address = "Paris", title = "histoires des ducs de Normandie", language = "fre", howpublished = "print", isbn = "9782745314581", keywords = "Normandy, Dukes of,Nobility", series = "Essais sur le moyen âge, 35", }