RETSÖ, D. Territorial fiscal systems in Medieval Sweden. Roczniki Dziejów Społecznych i Gospodarczych, [S. l.], v. 80, p. 43–64, 2020. DOI: 10.12775/RDSG.2019.02. Disponível em: https://apcz.umk.pl/RDSG/article/view/RDSG.2019.02. Acesso em: 19 lip. 2024.