conf/vldb/93 Patricia G. Selinger Predictions and Challenges for Database Systems in the Year 2000. 667-675 1993 VLDB db/conf/vldb/vldb93.html#Selinger93 http://www.vldb.org/conf/1993/P667.PDF journals/cacm/AstrahanC75 journals/debu/AryaCFRT93 ... conf/icde/ChengHHIMMW91 ... conf/sigmod/Codd71 ... conf/ac/Gray78 ... ... conf/sigmod/KolodnerW93 books/mk/MeltonS93 conf/edbt/MohanHWC90 conf/vldb/MohanN91 conf/sigmod/StonebrakerFGM93 conf/icde/SwamiI93 journals/ibmsj/TengG84