@misc{indiciaebca88d30ca54,
  title = {Measuring perceived orientation.},
  author = {P Emerson and P Wenderoth and I Curthoys and I Edmonds},
  doi = {10.1016/0042-6989(75)90248-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/1166601/},
  note = {Source identifier: 1166601}
}