References
- Vaisburd, D. I. and Semin, B. N. (1992). Bull. Russ. Acad. Sci., Phys. (USA), 56, 211.
- Kärner, T., Dolgov, S. A., Feldbach, E., Savikhin, F. A. and Meriloo, I. A. (1992). Sov. Phys. Solid State, 34, 1835.
- Bitov, I., Meriloo, I. and Savikhin, F. (1990). Trudy Inst. Fiz. Akad. Nauk Estonian SSR, 67, 7.
- Aleksandrov, Yu. M., Makhov, V. N., Rodnyi, P. A., Syreishchikova, T. I. and Yakimenko, M. N. (1984). Sov. Phys. Solid State, 26, 1734.
- Lushchik, A., Feldbach, E., Frorip, A., Ibragimov, K., Savikhin, F. and Lushchik, Ch. (1995). J. Lumin., 63, 273–278.
- Kubota, S., Itoh, M., Ruan, J. and Sakuragy, S. (1988). Phys. Rev. Lett., 60, 2319.
- Kirm, M., Lushchik, A., Lushchik, Ch., Nepomnyashikh, A. I. and Savikhin, F. (2001). Radiat. Meas., 33, 515.
- Kirm, G., Zimmerer, E. F., Lushchik, A., Lushchik, Ch. and Savikhin, F. (1999). Phys. Rev. B, 60, 502.
- Ivanov, V. Yu., Pustovarov, V. A., Gorbunov, S. V. and Kruzhalov, A. V. (1994). Phys. Solid State, 36, 1436.
- Xu, Y.-N. and Ching, W. Y. (1991). Phys. Rev. B, 43, 4461.
- Bortz, M. L., French, R. H., Joines, D. J., Krasowski, R. V. and Ohuchi, F. S. (1990). Phys. Scr., 41, 537.
- Stephan, M., Schmidt, P. C., Mishra, K. C., Raukas, M., Ellen, A. and Boolchand, P. (2001). Zs. Phys. Chem., 215, 1937.
- Hamrin, K., Johansson, G., Gelius, U., Nordling, C. and Sieghbahn, K. (1970). Phys. Scr., 1, 277.
- Lushchik, A., Savikhin, F. and Tokbergenov, I. J. Lumin., in press.