@inproceedings{Hammant:2012RC,
  author = "Hammant, Thomas  and  Hart, Alistair  and  von Hippel, Georg  and  Horgan, Ron  and  Monahan, Chris",
  title = "{Radiative improvement of the lattice NRQCD action using the background field method and application to the hyperfine splitting of quarkonium states}",
  doi = "10.22323/1.139.0122",
  booktitle = "Proceedings of XXIX International Symposium on Lattice Field Theory  {\textemdash} PoS(Lattice 2011)",
  year = 2012,
  volume = "139",
  pages = "122"
}