@article{Gregory:20099y,
  author = "Gregory, Eric  and  Davies, Christine  and  Wong, Kit Yan  and  Follana, Eduardo  and  Gamiz, Elvira  and  Lepage, G. Peter  and  Shigemitsu, Junko",
  title = "{Precision $B_c$ and $B_s$ mass calculations}",
  doi = "10.22323/1.066.0109",
  journal = "PoS",
  year = 2009,
  volume = "LATTICE 2008",
  pages = "109"
}