@article{206476,
  author = {Ellen Voorhees and Donna Harman},
  title = {Overview of the Sixth Text REtrieval Conference (TREC-6)},
  year = {1999},
  month = {1999-10-25},
  publisher = {Information Processing and Management},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151399},
  language = {en},
}