GRB 060223B: Swift XRT possible afterglow. Perri, M. ; Capalbi, M. ; Vetere, L. ; Antonelli, L. A. ; Tagliaferri, G. ; Burrows, D. N. ; Cummings, J. R. Abstract Publication: GRB Coordinates Network Pub Date: 2006 Bibcode: 2006GCN..4835....1P