Ursua Lizarbe, Mikel. “Bandidaje Y Violencia Fronteriza En La Merindad De Sangüesa (siglos XIII-XIV) [Brigandage and Border Violence in the Merindad De Sangüesa (13th and 14th centuries)]”. Príncipe de Viana, no. 269 (June 6, 2018): 807-830. Accessed May 18, 2024. https://revistas.navarra.es/index.php/PV/article/view/922.