@misc{indiciae17e0a2428f1a,
  title = {Information retrieval-1972.},
  author = {H M Koehler},
  year = {1972},
  doi = {10.14219/jada.archive.1972.0241},
  url = {https://pubmed.ncbi.nlm.nih.gov/4503528/},
  note = {Source identifier: 4503528}
}