@misc{indiciaeddd477062882,
  title = {Visual cortical cells: how critical is focus?},
  author = {J M Lee and R M Hill},
  year = {1973},
  doi = {10.1007/bf01943877},
  url = {https://pubmed.ncbi.nlm.nih.gov/4772040/},
  note = {Source identifier: 4772040}
}