GRB 141121A: Swift detection of a burst. Lien, A. Y. ; Kennea, J. A. ; Krimm, H. A. ; Markwardt, C. B. ; Marshall, F. E. ; Pagani, C. ; Palmer, D. M. Abstract Publication: GRB Coordinates Network Pub Date: 2014 Bibcode: 2014GCN.17075....1L