1. Carmel, D., Maarek, Y.S., Mandelbrod, M., Mass, Y., Soffer, A.: Searching XML documents via XML fragments. In: Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval, pp. 151–158. ACM Press, New York (2003)
2. Clarke, C.L.A., Cormack, G.V., Lynam, T.R.: Exploiting redundancy in question answering. In: Proceedings of the 24th annual international ACM SIGIR conference on Research and development in informaion retrieval, New Orleans, September 2001, pp. 358–365 (2001)
3. Yeung, D.L., Clarke, C.L.A., Cormack, G.V., Lynam, T.R., Terra, E.L.: Task-Specific Query Expansion (MultiText Experiments for TREC 2003). In: Proceedings of the Twelfth Text Retrieval Conference, Gaithersburg, MD. National Institute of Standards and Technology (2003)
4. Kamps, J., de Rijke, M., Sigurbjörnsson, B.: Length normalization in XML retrieval. In: Proceedings of the 27th annual international conference on Research and development in information retrieval, pp. 80–87. ACM Press, New York (2004)
5. Robertson, S.E., Walker, S., Beaulieu, M.: Okapi at TREC-7: Automatic ad hoc, filtering, VLC and interactive track. In: Proceedings of the Seventh Text REtrieval Conference, Gaithersburg, MD. National Institute of Standards and Technology (1998)