DUNCAN, Archibald A M; BROWN, A L. Argyll and The Isles in the Earlier Middle Ages. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 90, p. 192–220, 1959. DOI: 10.9750/PSAS.090.192.220. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8528. Acesso em: 18 apr. 2024.