@misc{indiciaed64ade94ed2b,
  title = {Communication augmentation systems: quantification in natural settings.},
  author = {C A Lossing and K M Yorkston and D R Beukelman},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/4004536/},
  note = {Source identifier: 4004536}
}