GRB 090426: Swift/BAT spectral lag results. Ukwatta, T. N. ; Gehrels, N. ; Krimm, H. A. ; Sakamoto, T. ; Barthelmy, S. D. ; Stamatikos, M. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN..9272....1U