conf/vldb/85 Robert M. MacGregor ARIEL - A Semantic Front-End to Relational DBMSs. 305-315 1985 VLDB db/conf/vldb/vldb85.html#Gregor85 db/conf/vldb/Gregor85.html VLDB85/P305.PDF ... conf/icod/Chamberlin80 journals/tods/Chen76 ... ... journals/sigmod/Date84 ... ... ... journals/tods/Kim82 journals/tods/Shipman81 journals/tods/StonebrakerWKH76 ... conf/sigmod/TsurZ84 conf/sigmod/Zaniolo83