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1984A&A...134..306C - Astronomy and Astrophysics, volume 134, 306-318 (1984)
A study of optically selected QSOs in a field centered at 01h39m,-55d.
CHEN J.-S.
Journal keyword(s):
Nomenclature: Table 2: [C84b] HHMM-DDdA N=137
Simbad objects: 136