@misc{indiciae51c3093fc2be,
  title = {A model for the visual perception of direction.},
  author = {G A Fry},
  year = {1988},
  doi = {10.1097/00006324-198805000-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/3407718/},
  note = {Source identifier: 3407718}
}