GRB 100423A: Xinglong TNT optical upper limit. Xin, L. P. ; Lin, Z. X. ; Qiu, Y. L. ; Wei, J. Y. ; Wang, J. ; Deng, J. S. ; Wu, C. ; Hu, J. Y. Abstract Publication: GRB Coordinates Network Pub Date: 2010 Bibcode: 2010GCN.10705....1X