@misc{indiciaea2fcbcef1584,
  title = {Morse-code-controlled computer aid for the nonvocal quadriplegic.},
  author = {D A Shannon and W S Staewen and J T Miller and B S Cohen},
  url = {https://pubmed.ncbi.nlm.nih.gov/6459517/},
  note = {Source identifier: 6459517}
}