Marquina, J., N. Sierralta, M. Quintero, C. Rincón, M. Morocoima, and E. Quintero. “Study of the Critical-Fields and the Thermal Broadening in Polycrystalline Ag$_2$FeGeSe$_4$ Semiconducting Compound”. Revista Mexicana De Física, vol. 63, no. 5, Jan. 2017, pp. 456-60, doi:10.31349/RevMexFis.63.5.456.