1. Anzer, U., 1969, Solar Phys. ,8, 37
2. Balbus, S.A. and Hawley, J.F., 1991, Astrophys., J. ,376, 214
3. Blandford, R.D., 1992, in Astrophysical Jets ,ed. O’Dea, Cambridge University Press.
4. Bookbinder, J.A., 1985, PhD thesis, Harvard University
5. Chandrasekhar, C., 1960, Proc. Nat. Acad. Sci. 46, 253