Intense blue and green photoluminescence emissions at room temperature in barium zirconate powders - Cavalcante, L. S.; Sczancoski, J. C.; Espinosa, J. W. M.; Mastelaro, Valmor Roberto; Michalowicz, A.; Pizani, P. S.; De Vicente, Fábio Simões; Siu Li, Máximo; Varela, J. A.; Longo, E. (Journal of Alloys and Compounds, 2009)