The Easter controversy of late antiquity and the early Middle Ages : its manuscripts, texts, and tables ; proceedings of the 2nd International Conference on the Science of Computus in Ireland and Europe, Galway, 18 - 20 July, 2008
The Easter controversy of late antiquity and the early Middle Ages : its manuscripts, texts, and tables ; proceedings of the 2nd International Conference on the Science of Computus in Ireland and Europe, Galway, 18 - 20 July, 2008