Resolving the hard X-ray emission of GX 5-1 with INTEGRAL A. Paizis, K. Ebisawa, T. Tikkanen, J. Rodriguez, J. Chenevez, E. Kuulkers, O. Vilhu and T. J.-L. Courvoisier A&A, 443 2 (2005) 599-608 Published online: 04 November 2005 DOI: 10.1051/0004-6361:20041647