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1993A&A...275....1H - Astronomy and Astrophysics, volume 275, 1-15 (1993)
A deep X-ray survey in the Lockman hole and the soft X-ray log N-log S.
HASINGER G., BURG R., GIACCONI R., HARTNER G., SCHMIDT M., TRUMPER J. and ZAMORANI G.
Journal keyword(s):
Errata: erratum vol. 291 p. 348
Simbad objects: 7
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