@article{Heller:2008sE,
  author = "Heller, Urs M.  and  Levkova, Ludmila",
  title = "{The equation of state with nonzero chemical potential for 2+1 flavors}",
  doi = "10.22323/1.042.0190",
  journal = "PoS",
  year = 2008,
  volume = "LATTICE 2007",
  pages = "190"
}