1. R Z Sagadeev and A A Galeev,Non-linear plasma theory (Benjamin, New York, 1969)
2. A A Galeev and R Z Sagadeev,Nucl. Fusion 13, 603 (1973)
3. K Nishikawa and C S Liu,Adv. Plasma Phys. 6, 3 (1976)
4. C S Liu and P K Kaw,Adv. Plasma Phys. 6, 83 (1976)
5. M Porkolab,Nucl. Fusion 18, 367 (1978)