[1]
S. Palomares Sánchez, S. Ponce-Castañeda, J. Martínez, and Facundo Ruiz., “Determination of phases of $\alpha $-Fe$_{2}$O$_{3}$:SiO$_{2}$ compound by the rietveld refinement”, Rev. Mex. Fís., vol. 48, no. 5, pp. 438–0, Jan. 2002.