@misc{indiciaef60104e61c6f,
  title = {Improvement in vernier acuity with practice.},
  author = {S P McKee and G Westheimer},
  year = {1978},
  doi = {10.3758/bf03206097},
  url = {https://pubmed.ncbi.nlm.nih.gov/704286/},
  note = {Source identifier: 704286}
}