conf/vldb/90 Bernhard Seeger Hans-Peter Kriegel The Buddy-Tree: An Efficient and Robust Access Method for Spatial Data Base Systems. 590-601 1990 VLDB db/conf/vldb/vldb90.html#SeegerK90 db/conf/vldb/SeegerK90.html VLDB90/P590.PDF conf/sigmod/BeckmannKSS90 journals/acta/BayerM72 journals/bit/Burkhard83 conf/sigmod/FaloutsosSR87 conf/sigmod/Freeston87 conf/sigmod/Guttman84 conf/sigmod/HansonCKW90 ... conf/sigmod/HutfleszSW88 conf/sigmod/Kriegel84 conf/icdt/KriegelS86 conf/icde/KriegelS88 ... conf/ssd/KriegelS89 conf/icde/LometS89 journals/tods/NievergeltHS84 journals/ipl/Orenstein82 conf/pods/OrensteinM84 conf/vldb/Otoo84 conf/pods/Otoo86 conf/pods/Ouksel85 conf/sigmod/Robinson81 ... conf/vldb/SeegerK88 journals/bit/Tamminen82 ...