conf/vldb/85 Serge Abiteboul Gösta Grahne Update Semantics for Incomplete Databases. 1-12 1985 VLDB db/conf/vldb/vldb85.html#AbiteboulG85 db/conf/vldb/AbiteboulG85.html VLDB85/P001.PDF conf/fodo/AbiteboulH85 conf/vldb/AbiteboulV84 conf/pods/AbiteboulV85 journals/tods/BancilhonS81 journals/siamcomp/BeeriV84 journals/tods/Biskup83 journals/tods/Codd79 conf/pods/FaginUV83 conf/vldb/Grahne84 conf/adbt/Imielinski82 journals/jacm/ImielinskiL84 conf/sigmod/ImielinskiL83 conf/pods/KuperUV84 journals/tods/MaierMS79 conf/adbt/Reiter77 journals/jacm/Reiter86 books/cs/Ullman82 conf/pods/Vardi85 conf/sigmod/Vassiliou79