Time delays between Fermi-LAT and GBM light curves of gamma-ray bursts G. Castignani, D. Guetta, E. Pian, L. Amati, S. Puccetti and S. Dichiara A&A, 565 (2014) A60 Published online: 12 May 2014 DOI: 10.1051/0004-6361/201322636