BRÉGAINT, D. Staging deaths: King Sverre or a usurper’s path to the throne. Medievalista, [S. l.], v. 1, n. 23, 2018. DOI: 10.4000/medievalista.1591. Disponível em: https://medievalista.iem.fcsh.unl.pt/index.php/medievalista/article/view/106. Acesso em: 29 mar. 2024.