@misc{indiciaeae0db9469777,
  title = {Psychophysical studies on subjects with visual defects.},
  author = {K H Ruddock},
  year = {1982},
  doi = {10.1177/014107688207500505},
  url = {https://pubmed.ncbi.nlm.nih.gov/6978942/},
  note = {Source identifier: 6978942}
}