1. S. V. Arlantsev, G. P. Mkheidze, and A. A. Savin, Plasma Sources Sci. Technol. 4, 147 (1995).
2. G. P. Mkheidze, in Encyclopedia of Low-Temperature Plasma, Ed. by V. E. Fortov: Introductional Volume (Nauka, Moscow, 2000), Part 4, p. 126 [in Russian].
3. S. V. Arlantsev, Yu. F. Bondar’, G. P. Kuz’min, et al., Prikl. Fiz., No. 1, 43 (2006).
4. N. V. Karlov, Lectures on Quantum Electronics (Nauka, Moscow, 1983) [in Russian].
5. Yu. F. Bondar’, S. I. Zavorotnyi, A. L. Ipatov, et al., Kratk. Soobshch. Fiz., No. 1, 3 (1982).