@misc{indiciaeff5bb2e8b3ae,
  title = {A puzzling teaching method.},
  author = {F Ivor},
  doi = {10.3928/0022-0124-19741101-21},
  url = {https://pubmed.ncbi.nlm.nih.gov/4497853/},
  note = {Source identifier: 4497853}
}