1. V. V. Zubov, N. A. Lyabin V. I. Mishin,et al., Kvant. Elektron.,10, 1908 (1983).
2. V. P. Belyaev, V. V. Zubov, A. A. Isaev,et al., Ibid.,12, 74 (1985).
3. V. V. Zubov, N. A. Lyabin, and A. D. Chursin,Ibid.,17, 2431 (1986).
4. V. V. Zubov, N. A. Lyabin, and A. D. Chursin,Ibid.,17, 28 (1990).
5. V. V. Zubov, A. D. Chursin, M. A. Lesnoy, and S. A. Ugolnicov, Proc. SPIE,2110, 78 (1993).