1. Allan, J., Ballesteros, L., Callan, J.P., Croft, W.B. and Lu, Z.: Recent experiments with INQUERY. In Proceedings of TREC-4, NIST Special Publication #500-236, 49–63, 1996.
2. Arampatzis, A., van der Weide, T., Koster, C. and van Bommel, P.: Linguistically motivated information retrieval. Encyclopedia of Library and Information Science, 39, 2000.
3. Buckley, C., Singhal, A., and Mitra, M.: Using query zoning and correlation within SMART: TREC-5. In Proceedings of TREC-5, NIST Special Publication #500-238, 105–118, 1997.
4. Carmel, D., Amitay, E., Herscovici, M., Maarek, Y., Petruschka, Y., and Soffer, A.: Juru at TREC-10: Experiments with index pruning. In Proceedings TREC-10, NIST Special Publication #500-250, 228–236, 2002.
5. Clarke, C.L.A., and Cormack, G.V. and Tudhope E. A.: Relevance Ranking for One to Three Term Queries. Information Processing and Management, 36(2):291–311, 2000.