GRB 180727A: Swift/BAT spectral lag result. Norris, J. P. ; Kawakubo, Y. ; Sakamoto, T. ; Barthelmy, S. D. ; Cenko, S. B. ; Lien, A. Y. Abstract Publication: GRB Coordinates Network Pub Date: 2018 Bibcode: 2018GCN.23072....1N