@article{Riggio:2015X+,
  author = "Riggio, Lorenzo  and  Carrasco, Nuria  and  Lami, Paolo  and  Lubicz, Vittorio  and  Picca, Eleonora  and  Simula, Silvano  and  Tarantino, Cecilia",
  title = "{$K \to \pi$ vector form factor with $N_f=2+1+1$ Twisted Mass fermions}",
  doi = "10.22323/1.214.0387",
  journal = "PoS",
  year = 2015,
  volume = "LATTICE2014",
  pages = "387"
}