GRB 100902A: D50 optical limit. Strobl, J. ; Nekola, M. ; Blazek, M. ; Jelinek, M. ; Polasek, C. ; Kubanek, P. ; Kocka, M. ; Hudec, R. Abstract Publication: GRB Coordinates Network Pub Date: 2010 Bibcode: 2010GCN.11339....1S