1. See for example,Amorphous Semiconductors Technologies and Devices), Ed. Y. Hamakawa, North-Holland, New York, 1981.
2. For recent reviews, see D.B. Holt,Quantitative Scanning Electron Microscopy, Academic Press, New York, p. 213 (1974), and H.J. Leamy, J. Appl. Phys.53, R51 (1982).
3. W.R. Bottoms, D. Guterman and P. Roitman, J. Vac. Sci. Techol.12, 134 (1975).
4. B.G. Yacobi, T.J. McMahon and A. Madan, Solar Cells,12, 329 (1984).
5. R. Street, D. Biegelsen and J. Stuke, Phil. Mag.B40, 451 (1979).