@article{Petreczky:2012eg,
  author = "Petreczky, Peter",
  title = "{On the trace anomaly in 2+1 flavor QCD}",
  doi = "10.22323/1.164.0069",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2012",
  pages = "069"
}