GRB 120404A: Mitsume akeno optical upper limits. Saito, Y. ; Aoki, Y. ; Song, S. ; Hayashi, M. ; Kawakami, K. ; Tokoyoda, K. ; Usui, R. ; Yatsu, Y. ; Kawai, N. Abstract Publication: GRB Coordinates Network Pub Date: 2012 Bibcode: 2012GCN.13211....1S