A Hard X-ray survey of the Galactic Center with INTEGRAL/IBIS. Catalog   of sources
  During the period Aug.23-Sept.24 2003, the INTEGRAL observatory performed an ultra deep survey of the Galactic Center region with a record sensitivity at energies higher than 20 keV. We have analized images of the Galactic Center region obtained with the ISGRI detector of the IBIS telescope (15-200 keV) and present here a catalog of detected sources. In total, 60 sources with a flux higher than 1.5 mCrab have been detected. 44 of them were earlier identified as Galactic binary systems, 3 are extragalactic objects. 2 new sources are discovered. 
M.Revnivtsev (1,2), R.Sunyaev (1,2), D.Varshalovich (3),   V.Zheleznyakov (4), A.Cherepashchuk (5), A.Lutovinov (1), E.Chura...