GRB090817: Keck/LRIS spectroscopy. Cenko, S. B. ; Walkowicz, L. M. ; Kasliwal, M. M. ; Bhalero, V. ; Kulkarni, S. R. ; Harrison, F. A. ; Arcavi, I. ; Baumgartner, W. H. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN..9841....1C