@article{Beneke:2007Uy,
  author = "Beneke, Martin  and  Jaeger, Sebastian",
  title = "{Hard spectator-scattering in $B\rightarrow \pi \pi$ decays at NNLO}",
  doi = "10.22323/1.021.0259",
  journal = "PoS",
  year = 2007,
  volume = "HEP2005",
  pages = "259"
}