GRB 111208A: lightbuckets optical observations. Ukwatta, T. N. ; Sonbas, E. ; Sakamoto, T. ; Gehrels, N. ; Linnemann, J. ; Tollefson, K. ; Abeysekara, U. Abstract Publication: GRB Coordinates Network Pub Date: 2011 Bibcode: 2011GCN.12644....1U