References
- Vaqueiro, P. and Lopez-Quintela, M. A. (1998). J. Mater. Chem., 8(1), 161.
- Hreniak, D. and Strek, W. (2002). J. All. & Comp., 341, 183.
- Parent, C., Lurin, C., Le Flem, G. and Hagenmueller, P. (1986). J. Lumin., 36, 49.
- Lurin, C. Parent and Le Flem, G. (1985). J. Less-Comm. Met., 112, 91.
- Balda, R., Lacha, L. M., Mendioroz, A., Sanz, M., Fernandez, J., Adam, J.L. and Arriandiaga, M. A. (2001). J. Alloys and Comp, 323–324, 255.
- Sokolska, I., Pracka, I. and Lukasiewicz, T. (1999). J. Cryst. Growth, 198/199, 521.
- Batalioto, F., De Sousa, D. F., Bell, M. J. V., Lebullenger, R., Hernandes, A. C. and Nunes, L. A. O. (2000). J. Non-Cryst. Solids, 273, 233.
- de Sousa, D. F., Batalioto, F., Bell, M. J. V., Oliveira, S. L. and Nunes, L. A. O. (2001). J. Appl. Phys., 90, 3308.
- Huber, D. L. (1981). Laser spectroscopy of solids. In: Yen, W. M. and Selzer, P. M. (Eds.), Topics and Applied Physics, Vol. 49. Springher Verlag, Berlin, p. 83.
- Peizhi Yang, Peizhen Deng and Zhiwen Yin (2002). J. Lumin., 97, 51–54.