GRAHAM-CAMPBELL, James. Viking Age and Late Norse gold and silver from Scotland: an update. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 138, p. 193–204, 2009. DOI: 10.9750/PSAS.138.193.204. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9723. Acesso em: 22 may. 2024.