Nikos Ntarmos Theoni Pitoura Peter Triantafillou Range Query Optimization Leveraging Peer Heterogeneity in DHT Data Networks. 111-122 2005 conf/dbisp2p/2006 DBISP2P http://dx.doi.org/10.1007/978-3-540-71661-7_10 db/conf/dbisp2p/dbisp2p2006.html#NtarmosPT05