@misc{indiciaeb8fb5e7ea28a,
  title = {Classical conditioning and human watch-keeping.},
  author = {D E BROADBENT},
  year = {1953},
  doi = {10.1037/h0061321},
  url = {https://pubmed.ncbi.nlm.nih.gov/13100538/},
  note = {Source identifier: 13100538}
}