@misc{indiciae8c170cef7c16,
  title = {Cone spacing and the visual resolution limit.},
  author = {D R Williams and N J Coletta},
  year = {1987},
  doi = {10.1364/josaa.4.001514},
  url = {https://pubmed.ncbi.nlm.nih.gov/3625331/},
  note = {Source identifier: 3625331}
}