1. Bornstein New Series, Volume 17b (1982), O. Madelung (ed.), Springer Verlag, Berlin, Heidelberg, New York.
2. Pizzini, S., Butta, N., Narducci, D., and Palladino, M. (1989), J. Electrochem. Soc.136, 1945.
3. Aeugle, T., Bials, H., Heneka, K., and Pleyer, W. (1991), Thin Solid Films
201, 293.
4. Hikernell, F. S. (1985), IEEE Trans. Sonics Ultrasonics
SU-32 621.
5. Cao, Z. C., Wu, R. J., and Song, R. S. (1994), Mat. Sci. Eng.B22, 261.