WEIDHAGEN-HALLERDT, Margareta. A Possible Ring Fort from the Late Viking Period in Helsingborg. Current Swedish Archaeology, [S. l.], v. 17, n. 1, p. 187–204, 2009. DOI: 10.37718/CSA.2009.12. Disponível em: https://publicera.kb.se/csa/article/view/637. Acesso em: 22 dec. 2024.