INTEGRAL/IBIS all-sky survey in hard X-rays R. Krivonos, M. Revnivtsev, A. Lutovinov, S. Sazonov, E. Churazov and R. Sunyaev A&A, 475 2 (2007) 775-784 Published online: 17 September 2007 DOI: 10.1051/0004-6361:20077191