1. Similarity Search: The Metric Space Approach;Zezula,2006
2. Satisfying general proximity/similarity queries with metric trees;Uhlmann;Information Processing Letters,1991
3. Similarity grid for searching in metric spaces;Batko,2005
4. A scalable content addressable network;Ratnasamy,2001
5. Chord: A scalable Peer-to-Peer lookup service for internet applications;Stoica,2001