Quintana-Puchol, R., L. Perdomo-González, A. Cruz-Crespo, L. Gómez-Rodríguez, L. L. García-Sánchez, A. Cerpa-Naranjo, and A. Cores-Sánchez. 2004. “Simultaneous Obtention of Multicomponent Ferroalloy and Slag from Black Sands for the Development of Electrical Arc Welding Consumables”. Revista De Metalurgia 40 (4):294-303. https://doi.org/10.3989/revmetalm.2004.v40.i4.277.