Journal of Computer and System Sciences · 1985 · 57 citations · 23 references
ComputingComputer ScienceData StructuresDatabasesDependency GrammarDependency ParsingPartial OrdersRelational AlgebraRelational Data ModelStructure-property RelationshipsDependency TheoryNested Data StructuresNested Structure
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A relational model of data for large shared data banks
E. F. Codd · Communications of the ACM · 1970 · 5.2K citations · Full text
A relational model of data for large shared data banks
E. F. Codd · Communications of the ACM · 1983 · 4.8K citations
Dependency Structures of Data Base Relationships.
William W. Armstrong · IFIP Congress · 1974 · 739 citations