conf/sigmod/79 Joachim Biskup Umeshwar Dayal Philip A. Bernstein Synthesizing Independent Database Schemas. 143-151 1979 SIGMOD Conference db/conf/sigmod/sigmod79.html#BiskupDB79 SIGMOD79/P143.PDF http://doi.acm.org/10.1145/582095.582118 conf/focs/AhoBU77 journals/tods/BeeriB79 conf/vldb/BeeriBG78 conf/sigmod/BeeriFH77 journals/tods/Bernstein76 journals/cacm/Codd70 persons/Codd71a ... ... journals/tods/Fagin77 journals/tods/Rissanen77 conf/mfcs/Rissanen78 ... ...