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2003AN....324...32G - Astron. Nachr., 324, 32-35 (2003)
The SHEEP survey: Observing the hardest of the hard with Chandra.
GEORGANTOPOULOS I., NANDRA K., BROTHERTON M., PTAK A., ZEZAS A. and PAPADAKIS I.
Journal keyword(s):
Simbad objects: 5
