ALBRECTSEN, Esben. Rex Insularum. the King of Norway and His ’Skattlands’ as a Political System c. 1260 - c. 1450. Ed.: Steinar Imsen. Fagbokforlaget, Bergen, 2014. Historisk Tidsskrift, [S. l.], v. 116, n. 2, p. 538–544, 2017. DOI: 10.7146/ht.v116i2.56859. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/56859. Acesso em: 14 mar. 2026.