Discovery of an extremely bright submillimeter galaxy at z = 3.93 J.-F. Lestrade, F. Combes, P. Salomé, A. Omont, F. Bertoldi, P. André and N. Schneider A&A, 522 (2010) L4 Published online: 29 October 2010 DOI: 10.1051/0004-6361/201015673