1. L. A. Kikoin and V. N. Fleurov, Transition Metal Impurities in Semiconductors (Electronic Structure and Physical Properties) (World Scientific, Singapore, 1994).
2. I. Žutic, J. Fabian, and S. D. Sarma, Rev. Mod. Phys. 76, 323 (2004).
3. V. I. Sokolov, Fiz. Tekh. Poluprovodn. (St. Petersburg) 28, 545 (1994) [Semiconductors 28, 329 (1994)].
4. V. I. Sokolov, N. B. Gruzdev, and I. A. Farina, Fiz. Tverd. Tela (St. Petersburg) 45(9), 1560 (2003) [Phys. Solid State 45 (9), 1638 (2003)].
5. V. I. Sokolov, N. B. Gruzdev, E. A. Shirokov, and A. I. Kislov, Fiz. Tverd. Tela (St. Petersburg) 44(1), 33 (2002) [Phys. Solid State 44 (1), 34 (2002)].