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1984ApJ...283..486M - Astrophys. J., 283, 486-494 (1984)
X-Ray selected quasars and Seyfert galaxies: cosmological evolution, luminosity function, and contribution to the X-ray background.
MACCACARO T., GIOIA I.M. and STOCKE J.T.
Journal keyword(s):
Simbad objects: 56
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