@ARTICLE{Severgnini2005,
   author = {{Severgnini}, P. and {Della Ceca}, R. and {Braito}, V. and {Saracco}, P. and 
	{Longhetti}, M. and {Bender}, R. and {Drory}, N. and {Feulner}, G. and 
	{Hopp}, U. and {Mannucci}, F. and {Maraston}, C.},
    title = "{Looking for obscured QSOs in the X-ray emitting ERO population}",
  journal = {Astronomy \& Astrophysics},
 keywords = {galaxies: active, X-rays: galaxies},
     year = 2005,
    month = feb,
   volume = 431,
    pages = {87-95},
      doi = {10.1051/0004-6361:20041587},
}