Multiwavelength Observation of Fourteen New X-Ray Selected AGN from the HEAO 1 All-Sky Survey Brissenden, R. J. ; Schwartz, D. A. ; Bradt, H. V. ; Remillard, R. A. ; Tuohy, I. R. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: March 1991 Bibcode: 1991BAAS...23..892B