1. V. A. Ivanov, Izv. Akad. Nauk, Ser. Khim., No. 11, 2255 (2004).
2. G. V. Semenova, T. P. Sushkova, and E. G. Goncharov, Zh. Neorg. Khim. 39(10), 1612 (1994).
3. J. A. Van Vechten, Czech. J. Phys. 30(4), 388.
4. A. Sakalas and Z. Yanushkyavichyus, Point Defects in Compound Semiconductors (Mokolas, Vilnus, 1988) [in Russian].
5. J. A. Van Vechten, J. Electrochem. Soc. 122(3), 423 (1975).