1. & (2000). INQUERY and TREC-9. Available at: http://trec.nist.gov/pubs/trec9/t9_proceedings.html.
2. Evaluating interactive systems in TREC
3. (2000). The TREC-9 query track. Available at: http://trec.nist.gov/pubs/trec9/t9_proceedings.html.
4. & (2000). Evaluating evaluation measure stability. In: Proceedings of the 23rd annual international ACM SIGIR conference on research and development in information retrieval, Athens, Greece (pp. 33-40).