@article{Mapelli:2004dV,
  author = "Mapelli, Michela  and  Salvaterra, Ruben  and  Ferrara, Andrea",
  title = "{Extragalactic Background Light: new constraints from the study of the photon-photon absorption on blazar spectra}",
  doi = "10.22323/1.014.0012",
  journal = "PoS",
  year = 2004,
  volume = "BDMH2004",
  pages = "012"
}