@inproceedings{Sasaki:2012ma,
  author = "Sasaki, Takahiro",
  title = "{Model approach to the sign problem on lattice QCD with theta vacuum}",
  doi = "10.22323/1.164.0076",
  booktitle = "Proceedings of The 30th International Symposium on Lattice Field Theory {\textemdash} PoS(Lattice 2012)",
  year = 2012,
  volume = "164",
  pages = "076"
}