1. Mangold, C., Schwarz, H., Mitschang, B.: u38: A Framework for Database-Supported Enterprise Document-Retrieval. In: 10th International Database Engineering and Applications Symposium (IDEAS 2006), IEEE, Los Alamitos (2006)
2. Hawking, D.: Challanges in Entrerprise Search. In: 5th Australasian Database Conference (ADC 2004), Dunedin, NZ, Conferences in Research and Practice in Information Technology, vol. 27 (2004)
3. Feldman, S.: Sherman. C.:The cost of not finding Information. IDC (2003)
4. Dmitriev, P., Serdyukov, P., Chernov, S.: Enterprise and desktop search. In: WWW 2010, pp. 1345–1346 (2010)
5. Owens, L.: The Forrester WaveTM: Enterprise Search, Q2 (2008)