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1997MNRAS.291L...5F - Mon. Not. R. Astron. Soc., 291, L5-L7 (1997)
The extreme X-ray luminosity of the z = 4.72 radio-loud quasar GB 1428+4217.
FABIAN A.C., BRANDT W.N., McMAHON R.G. and HOOK I.M.
Journal keyword(s):
CDS comments: PG 1736+481 misprint for PG 1718+481
Simbad objects: 5
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