1. ftp://ftp.cs.cornell.edu/pub/smart (site visited, October 2003)
2. http://www.clef-campaign.org (site visited, October 2003)
3. http://www.itl.nist.gov (site visited, October 2003)
4. Abney, S.: Partial parsing via finite-state cascades. Natural Language Engineering 2(4), 337–344 (1997)
5. Arampatzis, A., van der Weide, T., Koster, C., van Bommel, P.: Linguistically motivated information retrieval. In: Encyclopedia of Library and Information Science. Marcel Dekker, Inc., New York (2000)