@misc{indiciaeaa6ec80f9d48,
  title = {Sharp-edged vs. diffuse illusory circles: the effects of varying luminance.},
  author = {T E Parks and W Marks},
  year = {1983},
  doi = {10.3758/bf03202835},
  url = {https://pubmed.ncbi.nlm.nih.gov/6844108/},
  note = {Source identifier: 6844108}
}