@article{Kowalewska-Kudłaszyk:2010,
  author  = "A. Kowalewska-Kudłaszyk and W. Leoński",
  title   = "Sudden death of entanglement and its rebirth in a system of two nonlinear oscillators",
  journal = "Physica Scripta",
  volume  = "T. 140",
  pages   = "[4]",
  year    = "2010",
}