1. A. B. Ehrhardt and W. D. Larger, Collisional Processes of Hydrocarbons in Hydrogen Plasmas, PPPL-2477 (Sept. 1987).
2. A. Gallagher, “Materials Issues in Amorphous-Semiconductor Technology Symposium,” Palo Alto, 1986 (Mater. Res. Soc, Pittsburgh, PA1986), p. 3.
3. J. B. A. Mitchell, Phys. Repts. 186, 216 (1990).
4. M. A. Biondi, in Principles of Laser Plasmas, ed. by G. Bekefi (Wiley, New York, 1976) p. 125.
5. See, for example, Excimer Lasers, ed. by C. K. Rhodes (Springer-Verlag, New York, 1979).