@misc{indiciae3cca1f375352,
  title = {Is the illusory triangle physical or imaginary?},
  author = {C W Tyler},
  year = {1977},
  doi = {10.1068/p060603},
  url = {https://pubmed.ncbi.nlm.nih.gov/593794/},
  note = {Source identifier: 593794}
}