@misc{indiciae07d81b6e7a8e,
  title = {Foveal cone thresholds.},
  author = {R L Vimal and J Pokorny and V C Smith and S K Shevell},
  year = {1989},
  doi = {10.1016/0042-6989(89)90174-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/2773337/},
  note = {Source identifier: 2773337}
}