MATHEWSON, Allan. Notes on the Age of the Settlements on the Sands of Culbin. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 12, p. 302–305, 1877. DOI: 10.9750/PSAS.012.302.305. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5818. Acesso em: 20 apr. 2024.