GRB 131229A: Swift-XRT refined analysis. Maselli, A. ; Burrows, D. N. ; Kennea, J. A. ; Mangano, V. ; Pagani, C. ; Beardmore, A. P. ; Evans, P. A. ; Melandri, A. ; Sbarufatti, B. ; Page, M. J. Abstract Publication: GRB Coordinates Network Pub Date: 2013 Bibcode: 2013GCN.15634....1M