1. Ingwersen, P.: Polyrepresentation of Information Needs and Semantic Entities, Elements of a Cognitive Theory for Information Retrieval Interaction. In: Croft, B.W., van Rijsbergen, C.J. (eds.) Proceedings SIGIR 1994, pp. 101–111. Springer, London (1994)
2. Ingwersen, P., Järvelin, K.: The turn: integration of information seeking and retrieval in context. Springer-Verlag New York, Inc., Secaucus (2005)
3. Ingwersen, P.: Cognitive perspectives of information retrieval interaction: Elements of a cognitive IR theory. The Journal of Documentation 52, 3–50 (1996)
4. Kelly, D., Fu, X.: Eliciting better information need descriptions from users of information search systems. Information Processing & Management 43(1), 30–46 (2007)
5. Diriye, A., Blandford, A., Tombros, A.: A polyrepresentational approach to interactive query expansion. In: Proceedings JCDL 2009 (2009)