1. Yu. P. Raizer, Fundamentals of Modern Physics of Gas-Discharge Processes (Nauka, Moscow, 1980) [in Russian].
2. V. N. Karnyushin and R. I. Soloukhin, Macroscopic and Molecular Processes in Gas Lasers (Atomizdat, Moscow, 1981) [in Russian].
3. W. L. Nighan, in Principles of Laser Plasmas, Ed. by G. Bekefi (Wiley, New York, 1976; Energoizdat, Moscow, 1982).
4. Yu. I. Bychkov, Yu. D. Korolev, G. A. Mesyats, et al., Injection Gas Electronics (Nauka, Novosibirsk, 1982) [in Russian].
5. Yu. D. Korolev and G. A. Mesyats, Cold-Emission and Explosion Processes in Gas Discharges (Nauka, Novosibirsk, 1982) [in Russian].