1. Allen, C.W. 1973, Astrophysical Quantities (London: Athlone Press).
2. Anders, E., and Grevesse, N. 1989, Geochim. Cosmochim. Acta, 53, 197.
3. Anderson, L.S. 1989, Astrophys. J, 339, 558.
4. Anderson, L.S., and Athay, R.G. 1989, Astrophys. J, in press.
5. Anderson, L. S. and Avrett, E. H. 1989 in The Solar Interior and Atmosphere, ed. A.N. Cox, W.C. Livingston, and M. Matthews (Arizona: University of Arizona Press), in press.