GRB 130131A: Swift-XRT refined analysis. Kennea, J. A. ; Stroh, M. C. ; Burrows, D. N. ; Beardmore, A. P. ; Evans, P. A. ; Littlejohns, O. M. ; Maselli, A. ; Mangano, V. ; Melandri, A. Abstract Publication: GRB Coordinates Network Pub Date: 2013 Bibcode: 2013GCN.14168....1K