SHOTTER, David C A. Coin evidence and the northern frontier in the second century AD. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 107, p. 81–91, 1978. DOI: 10.9750/PSAS.107.81.91. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8932. Acesso em: 6 may. 2024.