1. A. B. Mikhailovskii,Theory of Plasma Instabilities(Consultants Bureau, New York, 1974), Vol. 1, p. 18.
2. P. C. Clemmow and J. P. Dougherty,Electrodynamics of Particles and Plasmas(Addison-Wesley, Reading, Mass., 1969), p. 205.
3. P. Penfield, Jr. and H. A. Haus,Electrodynamics of Moving Media(M.I.T. Press, Cambridge, Mass., 1967).
4. Instability of electromagnetic surface waves supported by a bounded plasma stream