Ruiz-Valdepeñas, F., M. Chapa, A. Quispe, and S. F. Medina. “Thermodynamics of Exchange Reactions in the Manufacturing of Microalloyed Steels by the ESR Process”. Revista De Metalurgia, vol. 34, no. Extra, May 1998, pp. 169-74, doi:10.3989/revmetalm.1998.v34.iExtra.732.