1. A. A. Vedenov, E. P. Velikhov, and R. Z. Sagdeev, Yad. Sintez 1, 82 (1961).
2. R. Z. Sagdeev, Reviews of Plasma Physics, Ed. by M. A. Leontovich (Atomizdat, Moscow, 1964; Consultants Bureau, New York, 1968), Vol. 4.
3. A. E. Dubinov and I. D. Dubinova, J. Plasma Phys. 71, 715 (2005).
4. A. E. Dubinov, I. D. Dubinova, and S. K. Saĭkov, Lambert W Function and Its Application in Mathematical Problems of Physics (RFYaTs-VNIIÉF, Sarov, 2006) [in Russian].
5. P. H. Sakanaka, Phys. Fluids 15, 304 (1972).