1. S. M. Rytov, Theory of Electric Fluctuations and thermal Radiation [in Russian], Academy of Sciences of the USSR, Moscow (1953).
2. V. D. Shafranov, in: Reviews of Plasma Physics, Vol. 3, Consultants Bureau, New York (1966), p. 1.
3. A. G. Sitenko, Electromagnetic Functions in Plasma [in Russian], State University, Kharkov (1965).
4. Yu. L. Klimontovich, Kinetic Theory of Nonideal Gas and Nonideal Plasma [in Russian], Nauka, Moscow (1975).
5. L. D. Landau and E. M. Lifshitz, Statistical Physics, Vol. 1, 3rd ed., Pergamon Press, Oxford (1980).