GRB 091208B: Mitsume okayama optical observation. Yoshida, M. ; Kuroda, D. ; Yanagisawa, K. ; Shimizu, Y. ; Nagayama, S. ; Toda, H. ; Kawai, N. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN.10258....1Y