@article{Takeda:2012FK,
  author = "Takeda, Shinji",
  title = "{On the phase of quark determinant in lattice QCD with finite chemical potential}",
  doi = "10.22323/1.139.0217",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2011",
  pages = "217"
}