Costa, J., 		Suárez, A., 		Saniger, J., AND 		Calderón, F..
"Effect of the Zr/Ti Ratio on the Properties of the PZT Ceramic Modified with 0.05 mol of Strontium" <em>Revista Cubana de Física</em> [Online], Volume 26 Number 2A (5 December 2009)