Puertas, F., M. T. Blanco-Varela, and T. Vázquez. “Reactivity and Burnability of Cement Raw Materials Witt High Manganese Content”. Materiales de Construcción 38, no. 210 (June 30, 1988): 39–48. Accessed April 26, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/837.