1. Allen, J.E. and Phelps, A.D.R., 1977, Rep. Prog. Phys. 40: 1305.
2. Antipov, S.V., Nezlin, M.K., Snezhkin, E.N., Trubnikov, A.S., 1978, Sov. Phys. JETP 47: 506.
3. Antipov, S.V., Nezlin, M.K., Snezhkin, E.N., Trubnikov, A.S., 1979, Sov. Phys. JETP 49: 797.
4. Apel, J.R., 1969, Phys. Fluids 12: 291.
5. Bhatnagar, V.P., Van Oost, G., Messiaen, A.M. and Van den Plas, P.E., 1976, Plasma Phys. 18: 525.