conf/vldb/79 Verónica Dahl Logical Design of Deductive Natural Language Consultable Data Bases. 24-31 1979 VLDB79/P024.PDF VLDB db/conf/vldb/vldb79.html#Dahl79 db/conf/vldb/Dahl79.html ... journals/cacm/Codd70 conf/sigmod/Codd71 ... conf/adbt/Clark77 ... ... ... ... ... conf/adbt/DilgerZ77 ... ... ... ... ... ... ... conf/adbt/Reiter77a conf/adbt/Reiter77 journals/jacm/Robinson65 ... ... ... ... ...