conf/sigmod/87 Peter Lyngbæk Victor Vianu Mapping a Semantic Database Model to the Relational Model. 132-142 1987 conf/sigmod/87 SIGMOD Conference db/conf/sigmod/sigmod87.html#LyngbaekV87 SIGMOD87/P132.PDF http://doi.acm.org/10.1145/38713.38732 conf/pods/AbiteboulH84 conf/pods/AbiteboulV85 conf/vldb/BeechF83 ... conf/pods/CasanovaFP82 ... journals/debu/DerrettKL85 journals/tois/FishmanBCCCDDHKLMNRS87 ... conf/oodbs/LyngbaekK86 books/cs/Maier83 ... journals/tods/MylopoulosBW80 journals/tods/Shipman81 journals/tods/SmithS77 conf/sigmod/TsurZ84 books/cs/Ullman82