1. G. S. Landsberg, Optics (Nauka, Moscow, 1976), p. 928 [in Russian].
2. V. S. Kalashnikov, Handbook on Clinico-Biological Studies and Laboratory Diagnostics (MEDpressinform, Moscow, 2009), p. 896 [in Russian].
3. E. D. Vovchenko, A. P. Kuznetsov, and A. S. Savelov, Laser Methods of Plasma Diagnostics. Tutorial. (MEPhI, Moscow, 2008), p. 205 [in Russian].
4. V. A. Veretennikov, E. A. Gurei, T. Pisarchik, et al., Fiz. Plazmy 16, 818 (1990).
5. E. O. Baronova, V. V. Vikhrev, E. A. Gurei, et al., Fiz. Plazmy 24, 25 (1998) [Plasma Phys. Rep. 24, 21 (1998)].