Histoire de l'Empire byzantin - Diehl, Charles , <1859-1944>. (OLS)http://semarc/name/31652 (Picard,, 1934)
Keywords: Impero romano d'Oriente <395-1453>. (OLS)http://semarc/subject/51981; Bisanzio - Storia. (OLS)http://semarc/subject/3021