L. A. Frank, J. B. Sigwarth, J. D. Craven, J. P. Cravens,
J. S. Dolan, M. R. Dvorsky, P. K. Hardebeck, J. D. Harvey,
and D. W. Muller.
29 July 1993
Revised: 14 December 1993
The University of Iowa
Department of Physics and Astronomy
Iowa City Iowa 52242
This article originally appeared in Space Science Reviews, vol. 71, pp. 297-328, 1995. © 1995 Kluwer Academic Publishers. Printed in Belgium. Reprinted by permission of Kluwer Academic Publishers.
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