HEALD, Andrew; JACKSON, Adam. Towards a new understanding of Iron Age Caithness. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 131, p. 129–147, 2002. DOI: 10.9750/PSAS.131.129.147. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9553. Acesso em: 4 may. 2024.