Matei Ripeanu Ian T. Foster Mapping the Gnutella Network: Macroscopic Properties of Large-Scale Peer-to-Peer Systems. 85-93 2002 conf/iptps/2002 IPTPS http://link.springer.de/link/service/series/0558/bibs/2429/24290085.htm db/conf/iptps/iptps2002.html#RipeanuF02