1. Athay, R. G. and White, O. R.: 1979, Astrophys. J. 226, 1135.
2. Avrett, E. H.: 1982, private communication.
3. Beckers, J. M. and Schneeberger, T. J.: 1977, Astrophys. J. 215, 356.
4. Benford, G.: 1982, preprint.
5. Braginskii, S. I.: 1966, Reviews of Plasma Physics, Vol. 1, Consultant Bureau, New York.