@misc{indiciae1fb045cd65e3,
  title = {Closed brain injuries: an engineering analysis.},
  author = {J A Kopecky and E A Ripperger},
  year = {1969},
  doi = {10.1016/0021-9290(69)90039-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/16335110/},
  note = {Source identifier: 16335110}
}