Acharya S., Srivastava O.N. Phys. Stat. Sol. (a) 65, 717 (1981)
Choyke W.J. Mat. Res. Bull. 4S, 141 (1969)
Голубков А.В., Дубровский Г.Б., Прокофьев А.В. ФТТ 36, \it 9, 2666 (1994)
Greenaway D.L., Nitsche R. J. Phys. Chem. Sol. 26, \it 9, 1445 (1965)
Domingo G., Itoga R.S., Kannewurf C.R. Phys. Rev. 143, \it 2, 536 (1966)
Lee P.A., Said G., Davis R., Lim T.H. J. Phys. Chem. Sol. 30, \it 12, 2719 (1969)
Powell M.J. J. Phys. C10, 15, 2967 (1977)
George J., Joseph K.S. J. Phys. D15, \it 6, 1109 (1982)
Shibata T., Kambe N., Miranushi Y., Miura T., Kishi T. J. Phys. D23, \it 6, 719 (1990)
Patil S.G., Tredgold R.N. J. Phys. D4, \it 5, 718 (1971)
Acharya S., Srivastava O.N. Phys. Stat. Sol. (a) 56, \it 1, K1 (1979)
Walton A.K., Moss T.S. Proc. Phys. Soc. 81, \it 3, 509 (1963)
McLean T.P. Progr. in Semicond. 5, 55 (1960)
Lucovsky G., Mikkelsen J.C., Liang W.Y., White R.M., Martin R.M. Phys. Rev. B14, \it 4, 1663 (1976)
Smith A.J., Meek P.E., Liang W.Y. J. Phys. C10, \it 8, 1321 (1977)
Горбань И.С., Губанов В.А., Орленко В.Ф. ФТТ 23, \it 1, 126 (1981)
Zallen R., Slade M. Phys. Rev. B9, \it 4, 1627 (1974)