SGR 1806-20, RHESSI observations of the 041227 giant flare. Boggs, S. ; Hurley, K. ; Smith, D. M. ; Lin, R. P. ; Hurford, G. ; Hajdas, W. ; Wigger, C. Abstract Publication: GRB Coordinates Network Pub Date: 2005 Bibcode: 2005GCN..2936....1B