Locations of Unidentified X-ray Sources with the HEAO-1 Scanning Modulation Collimator Garcia, M. ; Conroy, M. ; Doxsey, R. ; Griffiths, R. E. ; Johnston, M. ; Ralph, E. ; Roberts, W. ; Schwartz, D. A. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: March 1980 Bibcode: 1980BAAS...12..527G