@misc{indiciaef8873efa2fd1,
  title = {SAPHIRE--an information retrieval system featuring concept matching, automatic indexing, probabilistic retrieval, and hierarchical relationships.},
  author = {W R Hersh and R A Greenes},
  year = {1990},
  doi = {10.1016/0010-4809(90)90031-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2225787/},
  note = {Source identifier: 2225787}
}