Lars Bækgaard Leo Mark 583-590 1995 7 IEEE Trans. Knowl. Data Eng. 4 db/journals/tkde/tkde7.html#BaekgaardM95 db/journals/tkde/BaekgaardM95.html TKDE7/k0583.pdf conf/sigmod/BlakeleyLT86 journals/tods/BaekgaardM95 ... journals/tkde/BaekgaardM97 conf/vldb/CareySLLM90 conf/vldb/CeriW91 journals/cacm/Codd70 journals/is/DyresonS93 conf/sigmod/Hanson87 conf/sigmod/HansonCKW90 conf/sigmod/Hanson92 journals/toplas/HorwitzT86 journals/csur/JarkeK84 journals/tkde/JensenMR91 journals/sigmod/JensenCGSS92 phd/McKenzie88 books/bc/tanselCGSS93/NavatheA93 journals/tkde/QianW91 conf/vldb/RosenthalCBB89 journals/tods/Roussopoulos91 journals/tods/SeveranceL76 journals/cacm/SmithC75 journals/computer/SnodgrassA86 journals/tods/Snodgrass87 journals/is/AhnS88 ... conf/sigmod/StonebrakerJGP90 books/cs/Ullman88 books/cs/Ullman89 conf/sigmod/WolfsonDSY91