1. K. Nishikawa and C. S. Liu, inAdvances in Plasma Physics, edited by A. Simon and W. B. Thompson (Wiley, New York, 1976), Vol. 6, p. 3.
2. C. S. Liu and P. K. Kaw, inAdvances in Plasma Physics, edited by A. Simon and W. B. Thompson (Wiley, New York, 1976), Vol. 6, p. 83.
3. Langmuir turbulence and modulational instability
4. V. E. Zakharov, inHandbook of Plasma Physics, edited by A. A. Galeev and R. N. Sudan (North-Holland, Amsterdam, 1984), Vol. 2, p. 81.
5. K. Mima and K. Nishikawa, inHandbook of Plasma Physics, edited by A. A. Galeev and R. N. Sudan (North-Holland, Amsterdam, 1984), Vol. 2, p. 451.