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1987ApJ...312...91H - Astrophys. J., 312, 91-100 (1987/January-0)
Narrow-line Seyfert galaxies with permitted Fe II emission: Markarian 507, 5C 3.100 and I Zw 1.
HALPERN J.P. and OKE J.B.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Seyfert - Galaxies: X-Rays - Infrared: Sources
Simbad objects: 5
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