1. E. N. Parker, Cosmical Magnetic Fields (Clarendon, Oxford, 1979), Chap. 9.
2. V. M. Vasyliunas, Rev. Geophys. Space Phys. 13, 303 (1975).RGPSBL0034-6853
3. B. U. Ö. Sonnerup, P. J. Baum, J. Birn, S. W. H. Cowley, T. G. Forbes, A. B. Hassam, S. W. Kahler, W. H. Matthaeus, W. Park, G. Paschman, E. R. Priest, C. T. Russell, D. S. Spicer, and R. Stenzel, in Solar Terrestrial Physics—Present and Future, edited by D. M. Butler and K. Papadopoulos, NASA Reference Publication 1120, 1984, Chap. 1.
4. . G. Cowling, Magnetohydrodynamics (Adam Hilger, Bristol, England, 1976).
5. The appearance of an electric field along the separator in the neutral sheet has been proposed as a definition of reconnection in Ref. 3.