Marcel Karnstedt Katja Hose Kai-Uwe Sattler Query Routing and Processing in Schema-Based P2P Systems. 544-548 2004 conf/dexaw/2004 DEXA Workshops http://doi.ieeecomputersociety.org/10.1109/DEXA.2004.135 db/conf/dexaw/dexaw2004.html#KarnstedtHS04