@inproceedings{Colangelo:2008P0,
  author = "Colangelo, Gilberto",
  title = "{Theoretical progress on pi-pi scattering lengths and phases}",
  doi = "10.22323/1.046.0038",
  booktitle = "Proceedings of Kaon International Conference {\textemdash} PoS(KAON)",
  year = 2008,
  volume = "046",
  pages = "038"
}