@article{Bulatov:20116E,
  author = "Bulatov, Nikolai  and  Vernov, Sergey Yu.",
  title = "{Stable cosmological solutions and superpotential method in two-field models}",
  doi = "10.22323/1.104.0075",
  journal = "PoS",
  year = 2011,
  volume = "QFTHEP2010",
  pages = "075"
}