@misc{indiciae3cf9d90c4762,
  title = {Positive and negative information in matching problems.},
  author = {M DONALDSON},
  year = {1959},
  doi = {10.1111/j.2044-8295.1959.tb00702.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13817478/},
  note = {Source identifier: 13817478}
}