R. Pello'

The spatial clustering of X-ray selected AGN in the XMM-COSMOS field

L. Guzzo, D. Maccagni, M. Salvato, 2008, 0810.4769.

EDisCS - the ESO distant cluster survey. Sample definition and optical photometry

S. Charlot, P. Schneider, B. Milvang-Jensen, 2005, astro-ph/0508351.

The VVDS type-1 AGN sample: the faint end of the luminosity function

A. Mazure, G. Vettolani, P. Ciliegi, 2007, 0704.1660.