Ludger Becker Ralf Hartmut Güting Rule-Based Optimization and Query Processing in an Extensible Geometric Database System. 247-303 1992 17 ACM Trans. Database Syst. 2 db/journals/tods/tods17.html#BeckerG92 http://doi.acm.org/10.1145/128903.128905 db/journals/tods/BeckerG92.html TODS17/P247.PDF ... journals/tse/BatoryBGSTTW88 conf/oodbs/CareyDFGMRS86 conf/btw/DayalMBCGHOR87 ... conf/oodbs/Dittrich86 conf/sigmod/Freytag87 journals/tods/FreytagG89 ... conf/sigmod/GraefeD87 conf/edbt/Guting88 conf/vldb/Guting89 ... journals/acta/Guting84 ... journals/tois/GutingZC89 ... conf/sigmod/HaasFLP89 ... conf/btw/HarderR85 conf/vldb/HenrichSW89 journals/csur/JarkeK84 conf/vldb/LeeFL88 conf/sigmod/LindsayMP87 conf/vldb/LinnemannKDPEKSWW88 conf/sigmod/Lohman88 ... conf/edbt/MohanHWC90 journals/tods/NievergeltHS84 ... ... journals/tods/OsbornH86 conf/sigmod/PaulSSWD87 journals/debu/RosenthalH86 conf/oodbs/SchwarzCFLMMP86 conf/sigmod/SelingerACLP79 conf/sigmod/StonebrakerR86 conf/sigmod/StonebrakerRG83 ... conf/jcdkb/WilmsSSH88 journals/tods/WongY76