@misc{indiciaed2e6380d4daf,
  title = {Border locking and the Café Wall illusion.},
  author = {R L Gregory and P Heard},
  year = {1979},
  doi = {10.1068/p080365},
  url = {https://pubmed.ncbi.nlm.nih.gov/503767/},
  note = {Source identifier: 503767}
}