@article{Giommi:2010AQ,
  author = "Giommi, Paolo  and  Cavazzuti, Elisabetta  and  Cutini, Sara  and  Tramacere, Andrea  and  Raino', Silvia",
  title = "{The multi-frequency behaviour of Blazars}",
  doi = "10.22323/1.096.0040",
  journal = "PoS",
  year = 2010,
  volume = "extremesky2009",
  pages = "040"
}