Some unidentified sources of the first book of Differences and Etymologies of Isidore of Seville, or explaining how two works together Jacques Elfassi University of Lorraine image/svg+xml jacques.elfassi[at]univ-lorraine.fr Abstract PDF (French (Canada)) PDF (Spanish) Referencias Cómo citar Del mismo autor Métricas Author Biography Jacques Elfassi University of Lorraine Université de Lorraine, Centre Ecritures. UFR Lettres et Langues. Ile du Saulcy - 57045 Metz cedex 1 (Francia) + −