Portelles, J., 		Fuentes, J., 		Raymond, O., 		Heiras, J., 		Cruz, M., 		Ostos, C., 		Arizaga, G. G. C., AND 		Siqueiros, J. M..
"Influence of the Sintering Conditions on the Microstructural, Dielectric and Piezoelectric Properties of La Doped KNNTa Ceramics" <em>Revista Cubana de Física</em> [Online], Volume 31 Number 1 (15 July 2014)