1. A. G. Litvak, G. V. Permitin, E. V. Suvorov, and A. A. Frajman, Nucl. Fusion 17, 659 (1977).
2. A. D. Piliya and V. I. Fedorov, in Reviews of Plasma Physics, Ed. by B. B. Kadomtsev (Consultants Bureau, New York, 1987), Vol. 13, p. 335.
3. V. Erckmann and U. Gasparino, Plasma Phys. Controlled Fusion 36, 1869 (1994).
4. R. W. Harvey, W. M. Nevins, G. R. Smith, B. Lloyd, M. R. O’Brien, and C. D. Warrick, Nucl. Fusion 37, 97 (1997).
5. V. V. Alikaev, A. G. Litvak, E. V. Suvorov, and A. A. Fraiman, in High-Frequency Plasma Heating, Ed. by A. G. Litvak (AIP, New York, 1992), p.1.