1. S. G. Mikhailov, V. V. Osipov, and V. I. Solomonov, Zh. Tekh. Fiz. 63(2), 52 (1993) [Tech. Phys. 38, 85 (1993)].
2. V. I. Solomonov, A. I. Lipchak, and S. G. Mikhailov, Defektoskopiya, No. 7, 98 (1998).
3. V. I. Solomonov and S. G. Mikhailov, Zh. Prikl. Spektrosk. 69, 181 (2002).
4. B. S. Gorobets and A. A. Rogozhin, Handbook on Mineral Luminescence Spectra (VIMS, Moscow, 2001).
5. N. W. Aschcroft and N. D. Mermin, Solid State Physics (Holt, Renehart, and Winston, New York, 1976; Mir, Moscow, 1979).