@misc{indiciae4b9348a012c1,
  title = {Lower extremity angle measurement with accelerometers--error and sensitivity analysis.},
  author = {A T Willemsen and C Frigo and H B Boom},
  year = {1991},
  doi = {10.1109/10.137284},
  url = {https://pubmed.ncbi.nlm.nih.gov/1774080/},
  note = {Source identifier: 1774080}
}