X-ray selected Type-2 QSOs: high luminosity in heavily obscured AGN
3C 186 A Luminous Quasar in the Center of a Strong Cooling Core Cluster at z>1
Granada, May 27thThe X-ray Universe 2008 X-ray selected Type-2 QSOs: high luminosity in heavily obscured AGN Vincenzo Mainieri ESO G. Hasinger, M. Brusa,