A deep INTEGRAL hard X-ray survey of the 3C 273/Coma regionS. Paltani, R. Walter, I. M. McHardy, T. Dwelly, C. Steiner and T. J.-L. CourvoisierA&A, 485 3 (2008) 707-718DOI: https://doi.org/10.1051/0004-6361:200809450