1. F. G. Bass and Yu. G. Gurevich, Hot Electrons and Strong Electromagnetic Waves in the Plasma of Semiconductors and Gas Discharge (Nauka, Moscow, 1975) [in Russian].
2. A. I. Akhiezer, I. A. Akhiezer, R. V. Polovin, A. G. Sitenko, and K. N. Stepanov, Plasma Electrodynamics (Pergamon, New York, 1975).
3. V. L. Ginzburg, The Propagation of Electromagnetic Waves in Plasmas (Pergamon, London, 1964).
4. A. V. Gurevich and A. B. Shvartsburg, Nonlinear Theory of Radio Wave Propagation in the Ionosphere (Fizmatgiz, Moscow, 1973) [in Russian].
5. B. N. Gershman, Dynamics of Ionospheric Plasma (Nauka, Moscow, 1974) [in Russian].