@misc{indiciae137193f425b2,
  title = {Single switch use of a portable computer.},
  author = {P Clark and A L Evans and R Tremewan},
  year = {1987},
  doi = {10.1007/bf02442835},
  url = {https://pubmed.ncbi.nlm.nih.gov/2961956/},
  note = {Source identifier: 2961956}
}