@article{Donald:2012fP,
  author = "Donald, Gordon  and  Davies, Christine  and  Follana, Eduardo  and  Kronfeld, Andreas",
  title = "{The 't Hooft vertex for staggered fermions and flavor-singlet mesons}",
  doi = "10.22323/1.139.0314",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2011",
  pages = "314"
}