1. Akasofu, S. J.: 1981,Space Sci. Rev. 28, 121.
2. Angell, J. K. and Karshaver, J.: 1978,Monthly Weather Rev. 106, 325.
3. Bame, S. J. and Asbridge, J. R.: 1976,Astrophys. J. 207, 977.
4. Broussard, R. M., Sheeley, N. R., Tousey, R., and Underwood, J. H.: 1977,Stanford Univ. Inst. for Plasma Res., Rep. No. 696.
5. Davis, R., Jr., Evans, J. C., and Cleveland, B. I.: 1978, ?The Solar Neutrino Problem?, in E. C. Fowler (ed.),Neutrino, Purdue Univ., Lafayette, Vol. 78, p. 53.