Rivero Ysern, José Luis, and Encarnación Montoya Martín. “A New Opportunity for Metal Mining: The Reopening of the Mine of Aznalcóllar in Seville”. Revista Andaluza de Administración Pública, no. 91 (April 30, 2015): 37–90. Accessed June 7, 2025. https://ws168.juntadeandalucia.es/revistaselectronicas/raap/article/view/827.