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1993ApJ...402..514K - Astrophys. J., 402, 514-531 (1993/January-1)
Simultaneous ROSAT, GINGA, VLA, IUE and optical observations of the bright quasar H 1821+643.
KOLMAN M., HALPERN J.P., SHRADER C.R., FILIPPENKO A.V., FINK H.H. and SCHAEIDT S.G.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Radio Continuum: Galaxies - Ultraviolet: Galaxies - Galaxies: Quasars: Individual Alphanumeric: H 1821+643 - X-Rays: Galaxies
Simbad objects: 8
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