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1992AJ....104.1000Z - Astron. J., 104, 1000-1008 (1992)
UCM 2257+2438, a new narrow-line Seyfert 1 galaxy.
ZAMORANO J., GALLEGO J., REGO M., VITORES A.G. and GONZALEZ-RIESTRA R.
Journal keyword(s):
Simbad objects: 10
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