1. E. Fiorentino, T. Letardi andA. Marino:Nuovo Cimento B,71, 205 (1982).
2. E. Fiorentino, T. Letardi, A. Marino, E. Sabia andM. Vannini:Laser Part. Beams,3, 319 (1985).
3. A. De Angelis, E. Fiorentino, G. Giordano, T. Letardi, E. Sabia andM. Vannini:High uniformity X-ray preionized discharge XeCl laser, inProceedings of the International Conference on Lasers 84, edited byK. M. Corcoran, D. M. Sullivan andW. C. Stwalley (STS Press, McLean, VA, 1985), p. 606.
4. K. Midorikawa, M. Obara andT. Fujioka:IEEE J. Quantum Electron., QE-20, 198 (1984).
5. Silice Optique: Electro Quartz Data Sheet.