GRB 121117A: Swift detection of a burst. Cummings, J. R. ; Beardmore, A. P. ; D'Elia, V. ; Gronwall, C. ; Guidorzi, C. ; Marshall, F. E. ; Page, K. L. ; Palmer, D. M. ; Ukwatta, T. N. Abstract Publication: GRB Coordinates Network Pub Date: 2012 Bibcode: 2012GCN.13967....1C