T. F. O'Rahilly, Early Irish History and Mythology, Dublin Institute for Advanced Studies, 1946, pp. 269–271; Cecile O'Rahilly, Táin Bó Cualnge from the Book of Leinster, Dublin Institute for Advanced Studies, 1967, Introduction, p. ix
Kenneth Hurlstone Jackson, The Oldest Irish Tradition: a Window on the Iron Age, Cambridge University Press, 1964
John T. Koch, "Windows on the Iron Age", Ulidia, December Publications, 1994, pp. 229–237; J. P. Mallory, "The World of Cú Chulainn: The Archaeology of Táin Bó Cúailnge", Aspects of the Táin, December Publications, 1992, pp. 103–153