GRB991106, optical observation at SAO-RAS. Mitronova, S. ; Kopylov, A. ; Zharikov, S. ; Fatkhullin, T. ; Karachentsev, I. ; Sokolov, V. ; Kaisin, S. ; Masetti, N. Abstract Publication: GRB Coordinates Network Pub Date: 1999 Bibcode: 1999GCN...438....1M