Prompt emission of GRB 121217A from gamma-rays to the near-infrared J. Elliott, H.-F. Yu, S. Schmidl, J. Greiner, D. Gruber, S. Oates, S. Kobayashi, B. Zhang, J. R. Cummings, R. Filgas et al. (13 more) A&A, 562 (2014) A100 Published online: 12 February 2014 DOI: 10.1051/0004-6361/201322600