1. Kulsrud, R.M., Furth, H.P., Valeo, E.J. Budny, R.V., Jassby, D.L. et al., in Plasma Physics and Controlled Nuclear Fusion Research (Proc. 9th Int. Conf. Baltimore, 1982) Vol. 2, IAEA, Vienna (1983) 163;
2. Kulsrud, R.M., Furth, H.P., Valeo, E.J., Goldhaber, M., Phys Rev Lett
49 (1982) 2048
3. Kulsrud, R.M., Vaelo, E.J., Cowley, S.C., Nucl Fusion
26, 11 (1986) 1443
4. Bhaskar, N.D., Happer, W., McCleland, T., Phys Rev Lett
49 (1982) 25
5. Cline, R.W., Greytak, T.J., Kleppner, D., Phys Rev Lett
47 (1981) 1195