YOUNG, Hugh W. Notes on the Ramparts of Burghead, as revealed by Recent Excavations. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 25, p. 435–447, 1891. DOI: 10.9750/PSAS.025.435.447. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6413. Acesso em: 6 may. 2024.