MACDONALD, George. Miscellanea Romano-Caledonica. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 71, p. 373–387, 1937. DOI: 10.9750/PSAS.071.373.387. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8055. Acesso em: 5 may. 2024.