@article{Sommer:2011Wq,
  author = "Sommer, Rainer  and  Tekin, Fatih  and  Wolff, Ulli",
  title = "{Running of the Schroedinger functional coupling with four massless flavours}",
  doi = "10.22323/1.105.0241",
  journal = "PoS",
  year = 2011,
  volume = "Lattice 2010",
  pages = "241"
}