1. M. L. Godlewski and M. Leskela, CRC Crit. Rev. Solid State Mater. Sci. 19, 199 (1994).
2. A. Gallian, V. V. Fedorov, J. Kernal, et al., Appl. Phys. Lett. 86, 091105 (2005).
3. R. B. Morgunov and A. I. Dmitriev, Phys. Solid State 51, 1985 (2009).
4. S. S. Gorelik and M. Ya. Dashevskii, Semiconductor and Dielectric Materials Science, The School-Book for Higher School (MISIS, Moscow, 2003) [in Russian].
5. Diluted Magnetic (Semimagnetic Semiconductors), Ed. by R. L. Aggarwal, J. K. Furdyna, and S. von Molnar (Mater. Res. Soc., 1987; Mir, Moscow, 1992).