DIACK, Francis C. The Old-Celtic Inscribed and Sculptured Stone at Auquhollie, Kincardineshire, and Ogam in Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 59, p. 257–269, 1925. DOI: 10.9750/PSAS.059.257.269. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7636. Acesso em: 26 apr. 2024.