NAGEL, K.-J. Sobirania: origen, passat i present d’un concepte. Col·loquis de Vic, [S. l.], v. 18, p. 11–26, 2014. Disponível em: https://revistes.iec.cat/index.php/CV/article/view/86349.003. Acesso em: 12 may. 2024.