@article{Cusumano:20137d,
  author = "Cusumano, Giancarlo",
  title = "{The 4th Palermo Swift-BAT catalogue: 7 years of Survey of the hard X-ray sky}",
  doi = "10.22323/1.176.0095",
  journal = "PoS",
  year = 2013,
  volume = "INTEGRAL 2012",
  pages = "095"
}