Serge Abiteboul Sophie Cluet Tova Milo 96-114 VLDBJ7/80070096.pdf 1998 7 VLDB J. 2 db/journals/vldb/AbiteboulCM98.html db/journals/vldb/vldb7.html#AbiteboulCM98 journals/vldb/AbiteboulB95 conf/vldb/AbiteboulCM93 conf/sigmod/AbiteboulCM95 conf/sigmod/AbiteboulK89 conf/icde/BarbaraCDGJKMTW93 journals/tcs/BeeriK93 journals/cacm/BowenGHHLMRW92 books/mk/Cattell93 conf/sigmod/ChristophidesACS94 conf/sigmod/CluetD92 conf/sigmod/ConsensM94 ... journals/jacm/CosmadakisP84 journals/tods/DayalB82 books/mk/bancilhonDK92/Deux92 journals/cacm/GoldbergNOT92 conf/pods/Keller85 books/aw/Lamport86 conf/icde/Paepcke93 ... journals/computer/Schwartz93 conf/dood/ShawZ89 conf/dbpl/ShawZ89 conf/vldb/SoensLSST93 journals/tods/ShuHTGL77 conf/edbt/SantosAD94 journals/tois/StraubeO90 ... books/el/leeuwen90/Thomas90 books/cs/Ullman88