1. S. A. Kaplan and V. N. Tsytovich, Plasma Astrophysics [in Russian], Nauka, Moscow (1972).
2. M. Khakimova, F. Kh. Khakimov, and V. N. Tsytovich, Izv. Akad. Nauk ArmSSR, Ser. Astrofiz.,12, 351 (1976).
3. V. I. Karpman, C. A. Norman, and V. N. Tsytovich, Phys. Scr.,11, 271 (1975).
4. V. N. Tsytovich, A. M. Igritskii, and A. S. Chikhachev, Astron. Zh. (in press).
5. F. Kh. Khakimov and V. N. Tsytovich, Zh. Éksp. Teor. Fiz.,68, 95 (1975).