conf/pods/93 Bernd-Uwe Pagel Hans-Werner Six Heinrich Toben Peter Widmayer Towards an Analysis of Range Query Performance in Spatial Data Structures. 214-221 1993 PODS db/conf/pods/pods93.html#PagelSTW93 http://doi.acm.org/10.1145/153850.153878 db/conf/pods/PagelSTW93.html journals/anthology/cd1-3:PODS93/P214.PDF journals/anthology/dvd1:text/1-3/PODS93/P214.PDF conf/sigmod/BeckmannKSS90 conf/sigmod/Freeston87 ... conf/sigmod/Guttman84 conf/vldb/HenrichSW89 conf/icde/HutfleszSW90 journals/tods/NievergeltHS84 conf/vldb/SeegerK90