Xian Ye Christine Parent Stefano Spaccapietra Cardinality Consistency of Derived Objects in DOOD Systems. 278-295 1994 ER db/conf/er/er94.html#YePS94 conf/er/94 er94/ER94-P278.pdf http://dx.doi.org/10.1007/3-540-58786-1_85 journals/tods/AbiteboulG91 conf/sigmod/AbiteboulK89 conf/sigmod/AbiteboulH88 conf/pods/Bancilhon88 conf/pods/BeeriNRST87 conf/sigmod/CacaceCCTZ90 conf/icde/CalvaneseL94 books/mk/Cattell94 books/bc/ElmasriN89 conf/er/Ferg91 ... conf/edbt/FormicaM94 journals/jacm/HullY84 journals/csur/HullK87 conf/sigmod/KiferL89 journals/tods/KuperV93 ... conf/er/Thalheim92 conf/daisd/YePS94 ... ... conf/dood/Zaniolo89