1. L. B. Loeb, Fundamental Processes of Electrical Discharges in Gases (Wiley, New York, 1939; Gostekhizdat, Moscow, 1950).
2. V. L. Granovskii, Electric Current in Gases (Gostekhizdat, Moscow, 1952), Vol. 1 [in Russian].
3. P. A. Kaptsov, Electronics (Gostekhizdat, Moscow, 1954) [in Russian].
4. J. M. Meek and J. D. Craggs, Electrical Breakdown of Gases (Clarendon Press, Oxford, 1953; Inostrannaya Literatura, Moscow, 1960).
5. H. Raether, Electron Avalanches and Breakdown in Gases (Butterworths, London, 1964; Mir, Moscow, 1968).