MANN, John C; BREEZE, David J. Ptolemy, Tacitus and the tribes of north Britain. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 117, p. 85–91, 1988. DOI: 10.9750/PSAS.117.85.91. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9301. Acesso em: 25 apr. 2024.