Joan Peckham Bonnie MacKellar Michael Doherty Data Model for Extensible Support of Explicit Relationships in Design Databases VLDB J. 4 2 1995 157-191 VLDBJ4/P157.pdf db/journals/vldb/vldb4.html#PeckhamMD95 db/journals/vldb/PeckhamMD95.html conf/vldb/AlbanoGO91 ... conf/sigmod/BarsalouKSW91 journals/tods/BatoryK85 conf/vldb/BouzeghoubM91 conf/vldb/CeriW90 journals/tods/Chen76 conf/ds/DiazG90 conf/er/DogacOC89 conf/rules/DohertyPW93 ... ... ... journals/computer/FooT90 conf/vldb/GehaniJ91 ... conf/er/HalperGP92 journals/tods/HammerM81 journals/tse/HudsonK88 journals/csur/HullK87 conf/sigmod/KimBG89 ... books/aw/KimL89 ... ... ... ... conf/vldb/Morgenstern84 ... ... journals/csur/PeckhamM88 ... journals/tkde/PeckhamMD96 conf/dexa/PrichardDPW94 ... ... conf/oopsla/Rumbaugh87 ... ... ... journals/tkde/UrbanD90 conf/icde/UrbanKN92 ... conf/sigmod/WidomF90 ...