References
- Anderson , P. W. 1988 . Frontiers and Borderlines in many Particle Physics, Verenna Lecture , Edited by: Schrieffer , J. R. and Broglia , R. A. Amsterdam : North-Holland .
- Apsley , N. and Hughes , H. P. 1974 . Phil. Mag. , 30 : 963
- 1975 . Phil. Mag. , 31 : 1327
- Boguslavskij , Yu. M. , Verhoeven , M.A.J. , Roesthuis , F.J.G. , Gerritsma , G. J. and Rogalla , H. 1994 . Physica B , 194 : 1115
- Efros , A. L. and Shklovskii , B. I. 1985 . Electron-Electron Interaction in Disordered Systems , Amsterdam : North-Holland .
- Forro , L. 1995 . Int. J. mod. Phys. B , 8 : 829
- Hu , X. L. , Van Keuls , F. W. , Carmi , Y. , Jiang , H. W. and Dahm , A. J. 1995 . Solid St. Commun. , 96 : 65
- Kabasawa , U. , Tarutani , Y. , Tsukamoto , A. , Fukazawa , T. , Hiratani , M. and Takagi , K. 1992 . Physica C , 194 : 261
- Kabasawa , U. , Tarutani , Y. , Okamoto , M. , Fukazawa , T. , Tsukamoto , A. , Hiratani , M. and Takagi , K. 1993 . Phys. Rev. Lett. , 70 : 1700 and references therein
- Koyanagi , M. , Kashiwaya , S. , Matsuda , M. , Shoji , A. and Kajimura , K. 1994 . Physica B , 194 : 2155
- Liu , G. and Soonpaa , H. H. 1993 . Phys. Rev. B , 48 : 5682
- Mason , W. , Kravchenko , S. V. , Bowker , G. E. and Furneaux , J. E. 1995 . Phys. Rev. B , 52 : 7857
- Mott , N. F. and Davis , E. A. 1971 . Electron Processes in Non-crystalline Materials , London : Oxford University Press .
- Mott , N. F. 1974 . Metal-Insulator Transition , London : Taylor & Francis .
- Pollak , M. and Riess , I. 1976 . J. Phys. C , 9 : 2339
- Seong , D. , Lee , S. and Youm , D. 1990 . Solid St. Commun. , 76 : 1341
- Shklovskii , B. I. 1973 . Soviet Phys. Semicond. , 6 : 1964
- 1976 . Soviet Phys. Semicond. , 10 : 855
- Pollak , M. and Shklovskii , B. I. , eds. 1991 . Hopping Transport in Solids , Amsterdam : North-Holland . references therein
- Singh , M. and Sinha , K. P. 1989 . Solid St. Commun. , 70 : 149
- Singh , M. , Tarutani , Y. , Kabasawa , U. and Takagi , K. 1994a . Phys. Rev. B , 50 : 7007
- 1994b . Solid St. Commun. , 89 : 255 and references therein
- Singh , M. , Thompson , R. B. and Dumas , O. 1996 . Phys. Rev. B , 53 : 6806
- Sinha , K. P. and Singh , M. 1988 . J. Phys. C , 21 : L231
- van Ancum , G. K. , Verhoeven , M.A.J. , Blank , D.H.A. and Rogalla , H. 1995 . Phys. Rev. B , 52 : 5598