The Evolving Obscured AGN Population and the Cosmic X-ray Background
X-ray Emitting EROs as Tracers of Black Holes-Galaxies Coevolution
The N~H Distribution of Seyfert 2 Galaxies and the X-Ray Background
A Qualitative Test of a Unified Model of Seyfert Galaxies With BeppoSAX
IBIS: the imager onboard the INTEGRAL satellite
X-Ray Observations of High-z Radio Loud-Quiet Quasars