Guterman, s. Religious Toleration and Persecution in Ancient Rome. Aiglon Press, 1951
Simmons, M.B. Arnobius of Sicca: Religious Conflict and Competition in the Age of Diocletian. Oxford University, 1995
The Encyclopedia of World History, Sixth edition. Peter N. Stearns, general editor. Houghton Mifflin Company Bartleby.com Accessed 6 Dec 2003. http://www.bartleby.com/67/261.html
Acta Maximiliani250f.; according to M.P. Speidel and M.F. Pavkovic, "Legio II Flavia Constantia at Luxor," AJPh 110 (1989), 152, military dedications of the Diocletianic period follow 'a pattern in which army units pronounce themselves lucky so long as the Emperors are safe'. See Millar (1993), 187 ff.