@misc{indiciaec31ce7b0de25,
  title = {Machine aided indexing from natural language text},
  author = {Silvester, June P. and Genuardi, Michael T. and Klingbiel, Paul H.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930017712},
  note = {Source identifier: 19930017712}
}