^Georges Declercq, Anno Domini: The origins of the Christian Era (Turnhout, Belgium: Brepols, 2000), pp.143–147.
^G. Declercq, "Dionysius Exiguus and the introduction of the Christian Era", Sacris Erudiri41 (2002) 165–246, pp.242–246. Annotated version of a portion of Anno Domini.