David Liben-Nowell Hari Balakrishnan David R. Karger Observations on the Dynamic Evolution of Peer-to-Peer Networks. 22-33 2002 conf/iptps/2002 IPTPS http://link.springer.de/link/service/series/0558/bibs/2429/24290022.htm db/conf/iptps/iptps2002.html#Liben-NowellBK02