Coronado, J. H., Encinas, M. A., Leyva, J. C., Valenzuela, J. L., Valenzuela, A., & Munive, G. T. (2012). Roasting of refractory gold and silver concentrate. Revista De Metalurgia, 48(3), 165–174. https://doi.org/10.3989/revmetalm.1102