1. P. Wagner and J. Hage, Appl. Phys. A 49, 123 (1989).
2. S. Kashino, Y. Matsushita, M. Kanamori, and T. Iisaka, Jpn. J. Appl. Phys. 21(1) (1982).
3. H. Foll and B. O. Kolbesen, The Electrochemical Society Softbond Proceedings Series (Princeton, N.J., 1977), p. 565.
4. P. Becker, H. Bettin, L. Kolnders, et al., PTB Mitt. 106, 321 (1996).
5. B. Pajot, Analusis 5(7), 293 (1977).