Identification of 8 INTEGRAL hard X-ray sources with Chandra S. Sazonov, E. Churazov, M. Revnivtsev, A. Vikhlinin and R. Sunyaev A&A, 444 2 (2005) L37-L40 Published online: 25 November 2005 DOI: 10.1051/0004-6361:200500205