DILLON, John. Observations on the Norwegian Expedition against Scotland in the year 1263, and on some previous events which gave occasion to that War. Archaeologia Scotica, [S. l.], v. 2, p. 350–396, 1823. Disponível em: https://journals.socantscot.org/index.php/arch-scot/article/view/179. Acesso em: 24 apr. 2024.