1. Vasil’eva, A.N., Grishina, I.A., Klopovskii, K.S. et al., Fiz. Plazmy, 1985, vol. 11, no. 2, p. 221.
2. Torchin, L., Jegou, R., and Brunet, H., J. Chem. Phys., 1983, vol. 79, no. 4, p. 2100.
3. Schmiedberger, J., Takahashi, S., and Fujii, H., Proc. Soc. Photo-Opt. Instrum. Eng., 1997, vol. 3092, p. 694.
4. Shepelenko, A.A., Mikheev, P.A., Kupryaev, N.V., and Voronov, A.I., Izv. Ross. Akad. Nauk Ser. Fiz., 2000, vol. 64, no. 7, p. 1259.
5. Ionin, A.A., Klimachev, Yu.M., Kotkov, A.A. et al., J. Phys. D, 2003, vol. 36, p. 982.