REES, Thomas; BARBER, J; DALLAND, M; DUFFY, A; HOLDEN, T; MACSWEEN, A; MCSWEENEY, K. The excavation of Cairnwell ring-cairn, Portlethen, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 127, p. 255–279, 1998. DOI: 10.9750/PSAS.127.255.279. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9966. Acesso em: 26 apr. 2024.