SMITH, R Angus. Who are the Celts?. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 17, p. 385–399, 1883. DOI: 10.9750/PSAS.017.385.399. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6073. Acesso em: 27 apr. 2024.