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2. V.L. Ginzburg: Electromagnetic Wave Propagation in Plasmas, 2nd ed. (Pergamon, New York 1970)
3. A.M. Goncharenko, V.A. Karpenko: Osnovy Teorii Opticheskikh Volnovodov (Fundamentals of the theory of optical waveguides) (Nauka i Tekhnika, Minsk 1983)
4. W.M. Ewing, W.S. Jardetzky, F. Press: Elastic Waves in Layered Media (McGraw-Hill, New York 1957)
5. J.R. Wait: Electromagnetic Waves in Stratified Media (Pergamon, New York 1970)