1. A. K. Jonscher, ?Dielectric Relaxation in Solids? (Chelsea Dielectrics Press, London, 1983) p. 93.
2. R. M. Hill,Thin Solid Films 125 (1985) in press.
3. J. C. Maxwell, ?Treatise on Electricity and Magnetism?, 3rd Edn (Dover, New York, 1954).
4. R. J. Wagner,Ann. Physik 40 (1913) 317.
5. P. Debye, ?Polar Molecules? (Dover, New York, 1945).