Abstraction Capabilities and Invariant Properties Modelling within the Entity-Relationship Approach.

Peter Scheuermann Gerd Schiffner H. Weber Abstraction Capabilities and Invariant Properties Modelling within the Entity-Relationship Approach. 121-140 1979 ER db/conf/er/er79.html#ScheuermannSW79 conf/er/79 db/conf/er/ScheuermannSW79.html er79/ER79-P121.pdf ... journals/tods/Chen76 conf/afips/Chen77 conf/sigmod/HammerM78 conf/vldb/KerschbergKT76 ... ... journals/cl/SchiffnerS79 conf/sigmod/SchmidS75 journals/cacm/SmithS77 journals/tods/SmithS77 conf/vldb/Smith78c ... conf/vldb/Weber78a conf/db-workshops/YaoNW78