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1998ApJ...496..103B - Astrophys. J., 496, 103-116 (1998/March-3)
Variable extended objects in selected area 57.
BERSHADY M.A., TREVESE D. and KRON R.G.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Active - Galaxies: Photometry - Galaxies: Seyfert - Galaxies: Quasars: General - Surveys
Nomenclature: Table 3: [BTK98] NNNN N=16 among 2540
CDS comments: Table 3: NSer = [MKK97]
Simbad objects: 17
