EINSTEIN (HEAO-2) Observations of Cygnus X-3: Model X-Ray Light Curves and Binary Orbit Determination. Ghosh, P. ; Elsner, R. F. ; Weisskopf, M. C. ; Sutherland, P. G. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: September 1979 Bibcode: 1979BAAS...11..794G