CHRISTISON, David. Forts, Camps, and Motes of the Upper Ward of Lanarkshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 24, p. 281–352, 1890. DOI: 10.9750/PSAS.024.281.352. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6361. Acesso em: 26 apr. 2024.