Abreu Alfonso, Yamiel, 		Cruz Inclán, Carlos M., 		Piñera Hernández, Ibrahin, AND 		Leyva Fabelo, Antonio.
"Influence of the Structural Disorder on the Mössbauer Spectra of YBa2Cu3-yFeyO7-x" <em>Revista Cubana de Física</em> [Online], Volume 26 Number 2A (5 December 2009)