1. S.S. Moiseev, R.Z. Sagdeev, J. Nucl. Eng. 6, 6 (1964)
2. A. Fruchtman, H.R. Strauss, Phys. Fluids B 4, 1397 (1992)
3. A.B. Mikhailovskii, Electromagnetic Instabilities in an Inhomogeneous Plasma (Institute of Physics Publishing, Bristol, 1992)
4. A.M. Mirza, G. Murtaza, P.K. Shukla, Phys. Plasmas 3, 731 (1996)
5. P.C. Liewer, Nucl. Fusion 27, 611 (1985)