Downham 2013a, p. 164; Duffy 1992, pp. 94, 96–97. (EN) Claire Downham, Living on the Edge: Scandinavian Dublin in the Twelfth Century, in No Horns on Their Helmets? Essays on the Insular Viking-age, Celtic, Anglo-Saxon, and Scandinavian Studies, Aberdeen, Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen, 2013, pp. 157-178, ISBN978-0-9557720-1-6, ISSN 2051-6509 (WC · ACNP). (EN) Seán Duffy, Irishmen and Islesmen in the Kingdom of Dublin and Man 1052–1171, in Ériu, n. 43, 1992, pp. 93-133.
Downham 2013a, p. 164; Duffy 1992, pp. 94, 96–97. (EN) Claire Downham, Living on the Edge: Scandinavian Dublin in the Twelfth Century, in No Horns on Their Helmets? Essays on the Insular Viking-age, Celtic, Anglo-Saxon, and Scandinavian Studies, Aberdeen, Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen, 2013, pp. 157-178, ISBN978-0-9557720-1-6, ISSN 2051-6509 (WC · ACNP). (EN) Seán Duffy, Irishmen and Islesmen in the Kingdom of Dublin and Man 1052–1171, in Ériu, n. 43, 1992, pp. 93-133.
Downham 2013a, p. 164; Duffy 1992, pp. 94, 96–97. (EN) Claire Downham, Living on the Edge: Scandinavian Dublin in the Twelfth Century, in No Horns on Their Helmets? Essays on the Insular Viking-age, Celtic, Anglo-Saxon, and Scandinavian Studies, Aberdeen, Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen, 2013, pp. 157-178, ISBN978-0-9557720-1-6, ISSN 2051-6509 (WC · ACNP). (EN) Seán Duffy, Irishmen and Islesmen in the Kingdom of Dublin and Man 1052–1171, in Ériu, n. 43, 1992, pp. 93-133.