@article{Maccione:20090o,
  author = "Maccione, Luca  and  Liberati, Stefano  and  Celotti, Annalisa  and  Kirk, John  and  Ubertini, Pietro",
  title = "{Gamma-ray polarization constraints on Planck scale violations of special relativity }",
  doi = "10.22323/1.078.0018",
  journal = "PoS",
  year = 2009,
  volume = "CRAB2008",
  pages = "018"
}