@article{Drzewiński:1984,
  author  = "A. Drzewiński and Z. Popowicz",
  title   = "The Painleve ping-pong P IV",
  journal = "Physics Letters A",
  volume  = "Vol. 103",
  number  = "no 4",
  pages   = "182--185",
  year    = "1984",
}