Structural and optical properties of rare earth-doped '('Ba IND. 0.77''Ca IND. 0.23') IND. 1-x''(Sm, Nd, Pr, Yb) IND. x'Ti'O IND. 3' - Moraes, A. P. A.; Souza Filho, A. G.; Freire, P. T. C.; Mendes Filho, J.; M'Peko, Jean-Claude; Hernandes, Antônio Carlos; Antonelli, E.; Blair, Michael W.; Muenchausen, Ross E.; Jacobsohn, Luiz G.; Paraguassu, W. (Journal of Applied Physics, 2011)