SIMPSON, W Douglas. The Red Castle of Lunan Bay. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 75, p. 115–122, 1941. DOI: 10.9750/PSAS.075.115.122. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8149. Acesso em: 21 may. 2024.