@article{Xu:2014lj,
  author = "Xu, Fanrong",
  title = "{The rare $B$ \→ π \ell ^{+}\ell ^{-} decay}",
  doi = "10.22323/1.180.0108",
  journal = "PoS",
  year = 2014,
  volume = "EPS-HEP 2013",
  pages = "108"
}