GRB 121117A: BOOTES-3 early optical upper limit. Tello, J. C. ; Gorosabel, J. ; Castro-Tirado, A. J. ; Allen, W. ; Yock, Ph. ; Lin, K. -Y. ; Kubanek, P. Abstract Publication: GRB Coordinates Network Pub Date: 2012 Bibcode: 2012GCN.13968....1T