Chunqiang Tang Zhichen Xu pFilter: Global Information Filtering and Dissemination Using Structured Overlay Networks. 24-30 2003 conf/ftdcs/2003 FTDCS http://csdl.computer.org/comp/proceedings/ftdcs/2003/1910/00/19100024abs.htm db/conf/ftdcs/ftdcs2003.html#TangX03