@misc{indiciae1d9182cfdb79,
  title = {Unilateral external fixation. Methods to increase and reduce frame stiffness.},
  author = {F Behrens and W Johnson},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2924479/},
  note = {Source identifier: 2924479}
}