GRANAT Mission: A Solar Cosmic Ray Event in March 1991 Chuchkov, E. A. ; Ermakov, S. I. ; Kontor, N. N. ; Lyubimov, G. P. ; Pavlov, N. N. ; Tulupov, V. I. ; Scherbovskiy, B. Y. Abstract Publication: 23rd International Cosmic Ray Conference (ICRC23), Volume 3 Pub Date: 1993 Bibcode: 1993ICRC....3...21C