1. Ahmad, K., Gillam, L., Tostevin, L.: Weirdness indexing for logical document extrapolation and retrieval WILDER. In: TREC (1999)
2. Lecture Notes in Computer Science;W.-T. Balke,2005
3. Lecture Notes in Computer Science;W.-T. Balke,2005
4. Balke, W.-T., Nejdl, W., Siberski, W., Thaden, U.: Progressive distributed top-k retrieval in peer-to-peer networks. In: Proc. of ICDE (2005)
5. Bender, M., Michel, S., Triantafillou, P., Weikum, G.: Global document frequency estimation in peer-to-peer web search. In: Proc. of the 9th Int. Workshop on the web and databases (2006)