@InProceedings{Leoński:1999,
  author      = "W. Leoński and R. Tanaś",
  title       = "Finite energy states for periodically kicked nonlinear media",
  booktitle   = "Sixth International Conference on Squeezed States and Uncertainty Relations",
  address     = "Naples, Włochy",
  publisher   = "Greenbelt, Goddard Space Flight Center",
  volume      = "NASA Conference Publication, no 209899",
  pages       = "251--254",
  year        = "1999",
}