SGR 1900+14: Swift-BAT detection of a cluster of outbursts. Romano, P. ; Barthelmy, S. D. ; Kennea, J. A. ; Markwardt, C. B. ; Moretti, A. ; Palmer, D. M. Abstract Publication: GRB Coordinates Network Pub Date: 2006 Bibcode: 2006GCN..4934....1R