Michael J. Freedman Radek Vingralek Efficient Peer-to-Peer Lookup Based on a Distributed Trie. 66-75 2002 conf/iptps/2002 IPTPS http://link.springer.de/link/service/series/0558/bibs/2429/24290066.htm db/conf/iptps/iptps2002.html#FreedmanV02