@article{Moussalam:2014h7,
  author = "Moussalam, Bachir",
  title = "{Unified dispersive approach to real and virtual photon-photon scattering into two pions}",
  doi = "10.22323/1.192.0052",
  journal = "PoS",
  year = 2014,
  volume = "Photon 2013",
  pages = "052"
}