Properties of the Hard X-Ray Emission from the Black Hole Candidates: Cygnus X-1 and 1E1740.7-2942
Hard X-Ray Observations of X-Ray Nova Ophiuchi 1993 (GRS 1716-249) with GRANAT/SIGMA
Detection of the Hard X-Ray Emission from X-Ray Burster 4U1705-44 with GRANAT/SIGMA