[7] Lu Boniiacg el al.; ICL' 80 Digest of Technical Papers, 1980,21.
[9] V. A. Bhagavatula, Β. Yaakibi; Opt, Commum., 1978, 24, 331.
[16] Deng Ximbg, Xu Zhizhan, Yu Wenyan; JOSA, 1980, 70,No. 6, 653.
[21] Ε. Κ. Storm; Bull. Amer, Phys. Soc., 1976, 21. 1173.
[30] Μ. H. Key et al.; Opt. Commun., 1983, 44, 343.
[33] G. Вekeli et al.; "Principles of Laser Plasmas", New York, 1976.