GRB 030406 – an extremely hard burst outside of the INTEGRAL field of view R. Marcinkowski, M. Denis, T. Bulik, P. Goldoni, Ph. Laurent and A. Rau A&A, 452 1 (2006) 113-117 Published online: 17 May 2006 DOI: 10.1051/0004-6361:20064811