References
- Davies , J. H. , Lee , P. and Rice , T. M. 1982 . Phys. Rev. Lett. , 49 : 758
- Gosar , P. 1983a . Phys. Stat. Sol. (b) , 118 : 853
- 1983b . Physica (a) , 120 : 339
- Grünewald , M. , Pohlman , B. , Schweitzer , L. and Würtz , D. 1982 . J. Phys. C , 15 : L1153
- Knotek , M. L. and Pollak , M. 1972 . J. non-crystalline Solids , 8–10 : 505
- 1974 . Phys. Rev. B , 9 : 664
- Miller , A. and Abrahams , E. 1960 . Phys. Rev. , 120 : 745
- Mott , N. F. 1969 . Phil. Mag. , 19 : 835
- Pollak , M. 1981 . J. Phys. C , 14 : 2977
- Pollak , M. and Ortuno , M. 1982 . Sol. Energy Mater. , 8 : 81
- Efros , A. L. and Pollek , M. , eds. 1984 . Coulomb Interactions in Disordered Systems , Amsterdam : North-Holland . (in the press)
- Sompolinsky , H. 1981 . Phys. Rev. Lett. , 47 : 935