R. Parra, E. Puello-Polo, and J. Brito, “Effect of the carburization with CH4/H2 of (NH4)4[NiMo3W3O- 24H6]•5H2O AND (NH4)[NiMo6O24H6]•5H2O on thiophene hydrodesulfurization”, ITECKNE, vol. 15, no. 1, pp. 17–23, Jan. 2018.