@article{Filipiak:2009,
  author  = "J. Filipiak and R. Będziński and J. Chłopek",
  title   = "Preliminary tests of composite external fixator with changeable stiffness",
  journal = "Inżynieria Biomateriałów = Engineering of Biomaterials",
  volume  = "Vol. 12",
  number  = "no. 89-91",
  pages   = "210--212",
  year    = "2009",
}