Swift Observations of Fermi-LAT GRB 090902B. Stratta, G. ; D'Elia, V. ; Perri, M. ; Swenson, C. A. ; Barthelmy, S. D. ; Burrows, D. N. ; Roming, P. ; Gehrels, N. Abstract Publication: GCN Report Pub Date: 2009 Bibcode: 2009GCNR..249....1S