1. V. V. Mirnov, V. P. Nagornyi, and D. D. Ryutov, Preprint No. 84-40 (Institute of Nuclear Physics, Siberian Division, USSR Acad. Sci., Novosibirsk, 1984).
2. E. L. Berezovskii, A. I. Kislyakov, S. Ya. Petrov, and G. V. Roslyakov, Fiz. Plazmy 6, 1385 (1980) [Sov. J. Plasma Phys. 6, 760 (1980)].
3. A. Russek, Phys. Rev. 120, 1536 (1960).
4. V. G. Abramov, V. V. Afrosimov, I. P. Gladkovskii, et al., Zh. Tekh. Fiz. 41, 1924 (1971) [Sov. Phys. Tech. Phys. 16, 1520 (1972)].
5. A. V. Anikeev, A. N. Karpushov, K. Noak, and S. L. Strogalova, Preprint No. 2000-4 (Budker Institute of Nuclear Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 2000).