GRO/OSSE Observations of the Intense June 1991 Flares from AR 6659 Share, G. H. ; Murphy, R. J. ; Johnson, W. N. ; Kinzer, R. L. ; Kroeger, R. ; Kurfess, J. D. ; Strickman, M. S. ; Cameron, R. ; Jung, G. ; Grabelsky, D. ; Matz, S. M. ; Purcell, W. ; Ulmer, M. P. ; Frye, G. ; Jenkins, T. ; Jensen, C. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: September 1991 Bibcode: 1991BAAS...23.1388S