@misc{indiciae935a4e89d323,
  title = {A digital display revolution counter.},
  author = {D A Brodie and R S Bhogal and E Mitchell},
  year = {1981},
  doi = {10.1136/bjsm.15.2.133},
  url = {https://pubmed.ncbi.nlm.nih.gov/7272656/},
  note = {Source identifier: 7272656}
}