• G. Keating, The history of Ireland from the earliest period to the English invasion (Trad: J. O'Mahony), P. M. Haverty, 1857
• R.A.S. Macalister, Lebor Gabala Erenn. The Book of the Taking of Ireland V, 1956
• F. Le Roux - Ch.-J. Guyonvarc'h, (1986) - Les Druides, Ouest-France, 448p. • Pierre Crombet pour l'Arbre Celtique