1. A. K. Soika, Pis’ma Zh. Tekh. Fiz. 14, 1238 (1988) [Sov. Tech. Phys. Lett. 14, 542 (1988)].
2. B. B. Bo $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ ko, A. K. So $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ ka, and L. P. Mit’kovskaya, Prib. Tekh. Éksp., No. 5, 13 (1993).
3. J. M. Meek and J. D. Craggs, Electrical Breakdown of Gases [Clarendon Press, Oxford, 1953; Inostr. Lit., Moscow, 1960].
4. I. S. Marshak, Usp. Fiz. Nauk 77, 249 (1962) [Sov. Phys. Usp. 5, 478 (1962)].
5. B. P. Giterman, D. I. Zenkov, A. I. Pavlovskii et al., Zh. Tekh. Fiz. 52, 1983 (1982) [Sov. Phys. Tech. Phys. 27, 1218 (1982)].