conf/vldb/93 Alfons Kemper Guido Moerkotte Klaus Peithner A Blackboard Architecture for Query Optimization in Object Bases. 543-554 1993 VLDB db/conf/vldb/vldb93.html#KemperMP93 db/conf/vldb/KemperMP93.html VLDB93/P543.PDF conf/icde/BanerjeeKK88 journals/debu/Batory86 journals/tods/BeckerG92 conf/sigmod/CluetD92 conf/sigmod/Freytag87 conf/sigmod/GraefeD87 conf/icde/GraefeM93 journals/tods/IbarakiK84 ... conf/sigmod/Ioannidis87 conf/sigmod/KemperKM91 conf/sigmod/KemperM90 conf/vldb/KemperM90 books/mk/freytagMV91/KemperM91 ... conf/dbpl/LanzelotteC91 conf/vldb/LanzelotteV91 conf/sigmod/Lohman88 ... ... conf/sigmod/Piatetsky-ShapiroC84 conf/vldb/RosenthalC88 conf/sigmod/RosenthalR82 conf/sigmod/SelingerACLP79 journals/tods/Sellis88 conf/dood/StraubeO91 journals/cacm/Yao77