1. W.Y. Liang, p.31 in: “Intercalation in Layered Materials”, NATO ASI Series, M.S. Dresselhaus, ed., Plenum Press, New York (1986)
2. R.H. Friend and A.D. Yoffe, Advances in Phys., 36: 1 (1987)
3. W.Y. Liang, p.459 in: “Physics and Chemistry of Electrons and Ions in Condensed Matter”, NATO ASI Series, J.V. Acrivos, N.F. Mott and A.D. Yoffe, eds., Reidel Publishing Co. (1984)
4. G.Y. Guo and W.Y. Liang, J. Phys. C, 19: 995 (1986)
5. S.C. Bayliss, Ph.D. Thesis, University of Cambridge (1984)