@misc{indiciae8bb525078265,
  title = {Increment thresholds for two identical flashes.},
  author = {R M Herrick},
  year = {1972},
  doi = {10.1364/josa.62.000104},
  url = {https://pubmed.ncbi.nlm.nih.gov/5007206/},
  note = {Source identifier: 5007206}
}