1. Abdolsalami, F., and Khan, F., 1990, Phys. Rev. B41:3494.
2. Altshuler, B. L., Lee, P. A., and Webb, R. A, (eds.), 1991, “Mesoscopic Phenomena in Solids”, Elsevier, Amsterdam.
3. Anda, E. V., and Flores, F., 1991, J. Phys.: Condens. Matter3: 9087.
4. Ashcrof, N. W., and Mermin, N. D., 1976, “Solid State Physics”, Holt, Rinehart and Winston, New York
5. Barker, J. R., 1973, J. Phys. C6:2663.