@misc{indiciae7290b3bc2f5e,
  title = {Two linear rate-field displays.},
  author = {L Swartzendruber and F Ince and R C Williges and S N Roscoe},
  year = {1971},
  doi = {10.1177/001872087101300608},
  url = {https://pubmed.ncbi.nlm.nih.gov/5156702/},
  note = {Source identifier: 5156702}
}