1. schraefel, m.c: Building Knowledge: What’s beyond Keyword Search? Computer 42(3), 52–59 (2009)
2. White, R.W., Drucker, S.M.: Investigating Behavioral Variability in Web Search. In: Williamson, C., Zurko, M.E. (eds.) Proceedings of the 16th International Conference on World Wide Web ( WWW 2007), Banff, Alberta, Canada, pp. 21–30. ACM Press, New York (2007)
3. Broder, A.: A Taxonomy of Web Search. SIGIR Forum 36(2), 3–10 (2002)
4. Wang, P.: Information Behaviour and Seeking. In: Ruthven, I., Kelly, D. (eds.) Interactive Information Seeking, Behaviour and Retrieval, pp. 15–41. Facet, London (2011)
5. Cool, C., Belkin, N.J.: A Classification of Interactions with Information. In: Bruce, H. (ed.) International Conference on Conceptions of Library and Information Science No4 (CoLIS 2004), pp. 1–16. Libraries Unlimited, Greenwood Village (2002)