conf/vldb/77 Michel Lacroix Alain Pirotte Domain-Oriented Relational Languages. 370-378 VLDB77/P370.PDF 1977 VLDB db/conf/vldb/vldb77.html#LacroixP77 journals/cacm/BoyceCKH75 conf/mfcs/Cadiou76 conf/sigmod/ChamberlinB74 ... ... journals/tods/Chen76 conf/sigmod/Codd71 persons/Codd72 ... ... ... ... ... ... ... journals/tse/Reisner77 conf/vldb/RoussopoulosM75 conf/sigmod/SchmidS75 ...