1. J.K. Furdyna, J., Appl. Phys. 64, R29 (1988).
2. J.K. Furdyna, and J. Kossut, Diluted Magnetic Semiconductors, eds. R.C. Willardson and A.C. Beer (Academic Press, Boston, 1988) Vol. 25
3. R.R. Galazka and J. Kossut, in: Landoldt-Börnstein New Series, eds., O. Madelung, M. Schulz, H. Weiss (Springer Verlag, Heidelberg, Berlin 1982), V17b, Chpater 5, p. 302; R.R. Galazka, S. Nagata, P.H. Keesom, Phys. Rev. B22, 3344 (1980).
4. J.K. Furdyna, Solid State Electronics 37, 1065 (1994).
5. N. Dai, L.R. Ram-Mohan, H. Luo, G.L. Yang, F.C. Zhang, M. Dobrowolska, J.K. Furdyna, Phys. Rev. B 50, 18153 (1994).