1. For an excellent recent review see Shklovskii, B.L., Efros, A.L.: Electronic properties of doped semiconductors. Berlin, Heidelberg, New York: Springer 1984
2. Shlimak, I.S., Ionov, A.N., Shklovskii, B.I.: Fiz. Tekh. Poluprov.17, 503 (1983) [English transl.: Sov. Phys.-Semicond.17, 314 (1983)]
3. Ionov, A.N., Shlimak, I.S., Matveev, M.N.: Solid State Commun.47, 763 (1983)
4. Abboudy, S., Mansfield, R., Fozooni, P.: High magnetic fields in semiconductor physics. Landwehr, G. (ed.), pp. 518. Berlin, Heidelberg, New York: Springer 1987
5. Biskupski, G., Dubois, H., Laborde, O.: Application of high magnetic fields in semiconductor physics. Landwehr, G. (ed.). Berlin, Heidelberg, New York: Springer 1983