1. A. V. Dotsenko, L. B. Glebov, and V. A. Tsekhomsky, Physics and Chemistry of Photochromic Glasses (CRC, 1998).
2. N. V. Nikonorov, V. A. Tsekhomskii, and P. S. Shirshnev, RF Patent No.2466107(2012).
3. V. V. Golubkov, A. A. Kim, N. V. Nikonorov, V. A. Tsekhomskii, and P. S. Shirshnev, Fiz. Khim. Stekla38(3),303(2012).
4. B. B. Golubkov, A. I. Ekimov, A. A. Onushchenko, and V. A. Tsekhomskii, Fiz. Khim. Stekla7(4),397(1981).
5. A. A. Onushchenko and G. T. Petrovskii, J. Non-Cryst. Solids 196,73(1996).