@article{Wolff:2016ub,
  author = "Wolff, Ulli  and  Niedermayer, Ferenc",
  title = "{O(3) model with Nienhuis action}",
  doi = "10.22323/1.256.0317",
  journal = "PoS",
  year = 2016,
  volume = "LATTICE2016",
  pages = "317"
}