@misc{indiciaee0552e4e9194,
  title = {Contrast variability lightens subjective figures.},
  author = {W Hershberger and S Stallard},
  year = {1984},
  doi = {10.3758/bf03206358},
  url = {https://pubmed.ncbi.nlm.nih.gov/6493969/},
  note = {Source identifier: 6493969}
}