@misc{indiciae90254a09d780,
  title = {The spacing illusion: a spatial aperture problem?},
  author = {G Mather and A O'Halloran and S Anstis},
  year = {1991},
  doi = {10.1068/p200387},
  url = {https://pubmed.ncbi.nlm.nih.gov/1762881/},
  note = {Source identifier: 1762881}
}