@conference{86156,
  author = {E Lagergren and Paul Over},
  title = {Comparing Interactive Information Retrieval Systems Across Sites: The TREC-6 Interactive Track Matrix Experiment},
  year = {1998},
  month = {1998-07-15},
  publisher = {ACM/SIGIR Conference on Research and Development in Information Retrieval, Melbourne, AS},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151737},
  language = {en},
}