GRB 150518A : Xinglong TNT upper limit. Xin, L. P. ; Wang, X. F. ; Wei, J. Y. ; Qiu, Y. L. ; Deng, J. S. ; Wang, J. ; Han, X. H. ; Wu, C. Abstract Publication: GRB Coordinates Network Pub Date: 2015 Bibcode: 2015GCN.17835....1X