[1] Waynant R W, Elton, R С. Proc. IEEE, 1976; 64(7): 1059

[2] Hagektein Ρ L. Lawrence Livermore Laboratory, Livermore, CA, UCBL Eeport No. 53100, Jan. 1981

[3] Vinogradov AV et al., Sov. J. Quant. Elector., 1975; 5(1): 59

[4] Bhagavatula V A. IΕ EE J. Quant. Electr., 1980; QE-16(3): 603

[5] Dixon Ε Η, Elton В O. J. Opt. Soc. Am. B, 1984; 1(2): 232

[6] Burkhalter Ρ Q et al. J. Opt. Soc. Am. B, 1985; 2(12): 1984

[7] Vainehtein L A, Safronoya U Atom. Data & Nucl. Data Tables, 1878; 21 (1): 49

[9] Key Μ Η. Phil. Taans. Boy. Soc. London, 1980; A298: 351