Additional Identifications of Active Galactic Nuclei from the HEAO-1 X-ray Survey Remillard, R. A. ; Bradt, H. V. ; Buckley, D. A. ; Tuohy, I. R. ; Brissenden, R. ; Schwartz, D. A. ; Roberts, W. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: March 1987 Bibcode: 1987BAAS...19..699R