Pascual i Domènech, Pere. “The Copper Industry in Spain II. From 1976 to 2005”. Revista de Historia Industrial — Industrial History Review 17, no. 38 (September 20, 2017): 115–159. Accessed March 12, 2025. https://revistes.ub.edu/index.php/HistoriaIndustrial/article/view/19986.