Tolong jelaskan mengenai Sumber kedua dari Adomnán

Herbert, M. Iona, Kells, and Derry: the history and hagiography of the monastic familia of Columba. 1988.

O'Loughlin, T. "The Exegetical Purpose of Adomnán’s De Locis Sanctis", Cambridge Medieval Celtic Studies 24(1992)37-53.

O'Loughlin, T. "The Library of Iona in the Late Seventh Century: The Evidence from Adomnán’s De locis sanctis", Ériu 45(1994)33-52

O'Loughlin, T."The View from Iona: Adomnán’s mental maps", Peritia 10(1996)98-122

O'Loughlin, T. "Res, tempus, locus, persona: Adomnán’s Exegetical Method", Innes Review 48(1997)95-111; re-printed in: D. Broun and T.O. Clancy eds, Spes Scotorum Hope of the Scots: Saint Columba, Iona and Scotland (T. and T. Clark, Edinburgh 1999), pp. 139–158.

O'Loughlin, T. "Adomnán and Arculf: The Case of an Expert Witness", Journal of Medieval Latin 7(1997)127-146

O'Loughlin, T. "Adomnán: A Man of Many Parts" in T. O’Loughlin ed., Adomnán at Birr, AD 697: Essays in Commemoration of the Law of the Innocents (Four Courts Press, Dublin 2001), pp. 41–51.

O'Loughlin, T. "The Tombs of the Saints: their significance for Adomnán", in J. Carey, M. Herbert and P. Ó Riain eds, Studies in Irish Hagiography: Saints and Scholars (Four Courts Press, Dublin 2001), pp. 1–14.