@misc{indiciae9b4b3c4117fe,
  title = {Understanding covert recognition.},
  author = {A M Burton and A W Young and V Bruce and R A Johnston and A W Ellis},
  year = {1991},
  doi = {10.1016/0010-0277(91)90041-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/1934980/},
  note = {Source identifier: 1934980}
}