CANNELL, R.; BILL, J.; CHEETHAM, P.; WELHAM, K. The Gokstad Viking Age trading site: a voyage of physicochemical prospection. Archaeologia Polona, [S. l.], v. 53, p. 438–439, 2015. Disponível em: https://journals.iaepan.pl/apolona/article/view/369. Acesso em: 6 may. 2024.