GRB 090422: Liverpool telescope observations. Guidorzi, C. ; Bersier, D. ; Melandri, A. ; Mottram, C. J. ; Mundell, C. G. ; Smith, R. J. ; Steele, I. A. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN..9187....1G