@misc{indiciaefdecf2866980,
  title = {Increment and decrement visual thresholds.},
  author = {A S Patel and R W Jones},
  year = {1968},
  doi = {10.1364/josa.58.000696},
  url = {https://pubmed.ncbi.nlm.nih.gov/5647008/},
  note = {Source identifier: 5647008}
}