1. Low, B.C.: 1973, Astrophys. J.
181, 209.
2. Raymond, J.C., Cox, D.P., and Smith, B.W.: 1976, Astrophys. J.
204, 290.
3. Rosner, R.: 1986, Hydrodynamic and Magnetohydrodynamic Problems in the Sun and Stars (Department of Astronomy, University of Tokyo, ed. Y. Osaki) p.37.
4. Spicer, D.S.: 1981, Solar Phys.
70, 149.
5. Spicer, D.S.: 1982, Space Scie.Rev, 31, 351.