A weak lensing study of the Coma cluster R. Gavazzi, C. Adami, F. Durret, J.-C. Cuillandre, O. Ilbert, A. Mazure, R. Pelló and M. P. Ulmer A&A, 498 2 (2009) L33-L36 Published online: 08 April 2009 DOI: 10.1051/0004-6361/200911841