J. A. de C. R. de Souza, «Origins of the Imperial and Secular Power according Ockham’s Political Thought», An. Semin. Hist. Filos., vol. 27, pp. 115–152, sep. 2010, Accedido: jul. 11, 2026. Disponible en: https://revistas.ucm.es/index.php/ASHF/article/view/ASHF1010110115A