1. A. Éngel', Ionized Gases [in Russian], Fizmatgiz, Moscow (1959).
2. R. M. Fristrom and A. W. Westenberg, Flame Structure, McGraw-Hill (1965).
3. B. S. Fialkov and V. T. Plitsyn, Kinetics of the Motion and Character of the Combustion of Coke in a Blast Furnace [in Russian], Metallurgiya, Moscow (1971).
4. B. S. Fialkov, V. T. Plitsyn et al., Fiz. Goreniya Vzryva,7, No. 3, (1971).
5. E. M. Stepanov and B. G. D'yachkov, Ionization in a Flame and an Electrical Field [in Russian], Metallurgiya, Moscow (1968).