Solar Energetic Proton Events Unassociated with Coronal Mass Ejections Kahler, S. ; Evenson, P. ; McGuire, R. E. ; Reames, D. V. ; von Rosenvinge, T. T. ; Sheeley, N. R., Jr. ; Howard, R. A. ; Koomen, M. J. ; Michels, D. J. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: March 1984 Bibcode: 1984BAAS...16..453K