1. Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984; Nauka, Moscow, 1989).
2. Handbook of Lasers, Ed. by A. M. Prokhorov (Sov. Radio, Moscow, 1978), Vol. 2.
3. S. A. Akhmanov and R. V. Khokhlov, Nonlinear Optics (VINITI, Moscow, 1964; Gordon and Breach, New York, 1972).
4. Z. A. Tagiev and R. Dzh. Kasumova, Opt. Spektrosk. 80, 941 (1996) [Opt. Spectrosc. 80, 848 (1996)].
5. Kh. P. Alum, Yu. V. Koval'chuk, and G. V. Ostrovskaya, Pis'ma Zh. Tekh. Fiz. 7, 1359 (1981) [Sov. Tech. Phys. Lett. 7, 581 (1981)].