@article{Kowalewska-Kudłaszyk:2011,
  author  = "A. Kowalewska-Kudłaszyk and W. Leoński and J. Peřina Jr.",
  title   = "Photon-number entangled states generated in Kerr media with optical parametric pumping",
  journal = "Physical Review A",
  volume  = "Vol. 83",
  number  = "no 5",
  pages   = "052326-1--052326-8",
  year    = "2011",
}