Edwards, Iorwerth Eiddon Stephen; Gadd, Cyril John; Hammond, Nicholas Geoffrey Lemprière; Boardman, John; Walbank, Frank William; Lewis, David Malcolm; Bowman, Alan; Astin, A. E.; Garnsey, Peter; Crook, John Anthony; Lintott, Andrew William; Cameron, Averil; Rawson, Elizabeth; Champlin, Edward; Rathbone, Dominic; Ward-Perkins, Bryan; Whitby, Michael (). „The Cambridge Ancient History: Volume 12, The Crisis of Empire, AD 193-337”. Cambridge University Press – via Google Books.