Generalised Hash Teams for Join and Group-by. - Alfons Kemper; Donald Kossmann; Christian Wiesner (VLDB, 1999)

Exploiting early sorting and early partitioning for decisionsupport query processing. - Jens Claußen; Alfons Kemper; Donald Kossmann; Christian Wiesner (VLDB J., 2000)

Hyperqueries: Dynamic Distributed Query Processing on the Internet. - Alfons Kemper; Christian Wiesner (VLDB, 2001)

Building Dynamic Market Places Using HyperQueries. - Christian Wiesner; Peter Winklhofer; Alfons Kemper (EDBT, 2002)

Distributed Queries and Query Optimization in Schema-Based P2P-Systems. - Ingo Brunkhorst; Hadhami Dhraief; Alfons Kemper; Wolfgang Nejdl; Christian Wiesner (DBISP2P, 2003)

Processing and Optimization of Complex Queries in Schema-Based P2P-Networks. - Hadhami Dhraief; Alfons Kemper; Wolfgang Nejdl; Christian Wiesner (DBISP2P, 2004)

Dynamic Extensible Query Processing in Super-Peer Based P2P Systems. - Christian Wiesner; Alfons Kemper; Stefan Brandl (ICDE, 2004)

Query evaluation techniques for data integration systems. - Christian Wiesner (2004)

Building Scalable Electronic Market Places Using HyperQuery-Based Distributed Query Processing. - Alfons Kemper; Christian Wiesner (World Wide Web, 2005)