@misc{indiciae416e718cbfb9,
  title = {Human observer performance. A new set of problems to solve.},
  author = {B S Worthington},
  year = {1993},
  doi = {10.1097/00004424-199308003-00077},
  url = {https://pubmed.ncbi.nlm.nih.gov/8376045/},
  note = {Source identifier: 8376045}
}