@article{Stroganov:2002hJ,
  author = "Stroganov, Yuri  and  Alcaraz, F. C.",
  title = "{Free fermion branches in some quantum spin models }",
  doi = "10.22323/1.008.0037",
  journal = "PoS",
  year = 2002,
  volume = "unesp2002",
  pages = "037"
}