@misc{indiciae7b8a1e966386,
  title = {A quantitative study of perceptual vector analysis.},
  author = {K H Shum and G L Wolford},
  year = {1983},
  doi = {10.3758/bf03205891},
  url = {https://pubmed.ncbi.nlm.nih.gov/6634354/},
  note = {Source identifier: 6634354}
}