Minqi Zhou Rong Zhang Weining Qian Aoying Zhou GChord: Indexing for Multi-Attribute Query in P2P System with Low Maintenance Cost. 55-66 2007 conf/dasfaa/2007 DASFAA http://dx.doi.org/10.1007/978-3-540-71703-4_7 db/conf/dasfaa/dasfaa2007.html#ZhouZQZ07