@misc{indiciae670446cb535a,
  title = {Measuring visual constancy for stationary or moving objects.},
  author = {S M ANSTIS and C D SHOPLAND and R L GREGORY},
  year = {1961},
  doi = {10.1038/191416a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/13683709/},
  note = {Source identifier: 13683709}
}