1. W.B. Leigh and B.W. Wessels, Thin Solid Films,97, 221 (1982).
2. seee.g. T. Muranoi and M. Furukoshi, J. Electrochem. Soc. Solid State Sci. and Tech.127, 2295 (1980).
3. M.D. Scott, J.O. Williams and R.C. Goodfellow, Thin Solid Films,72, L1-L3 (1980).
4. J.O. Williams, submitted for publication.
5. J.O. Williams, E.S. Crawford, J.LI. Jenkins, T.L. Ng, A.M. Patterson, M.D. Scott, B. Cockayne and P.S. Wright, J. Mat. Sci. Letters, in press.