The Fermi GBM and LAT follow-up of GW150914 E. Bissaldi, V. Connaughton, N. Omodei, E. Burns, A. Goldstein and G. Vianello EPJ Web Conf., 136 (2017) 03020 Published online: 23 March 2017 DOI: 10.1051/epjconf/201713603020