@misc{indiciaee1771823de12,
  title = {Perceived spatial frequency varies with stimulus duration.},
  author = {P Tynan and R Sekuler},
  year = {1974},
  doi = {10.1364/josa.64.001251},
  url = {https://pubmed.ncbi.nlm.nih.gov/4419611/},
  note = {Source identifier: 4419611}
}