E. Díaz, J., S. R. Izquierdo, R. Mejía de Gutiérrez, and M. Gordillo S. “Ternary Mixture of Portland Cement, Blast Furnace Slag and Limestone: Mechanical Strength and Durability”. Revista De La Construcción. Journal of Construction, vol. 12, no. 3, Dec. 2013, pp. 55-62, http://146.155.94.136/index.php/RDLC/article/view/13640.