@article{QinRobertsSchmidt2014,
  author    = {Si-Xue Qin and Craig D. Roberts and Sebastian M. Schmidt},
  title     = {Ward-Green-Takahashi identities and the axial-vector vertex},
  journal   = {Physics Letters B},
  volume    = {733},
  pages     = {202 -- 208},
  doi       = {10.1016/j.physletb.2014.04.041},
  year      = {2014},
}