@article{Sasaki:2012ma,
  author = "Sasaki, Takahiro",
  title = "{Model approach to the sign problem on lattice QCD with theta vacuum}",
  doi = "10.22323/1.164.0076",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2012",
  pages = "076"
}