On the number of databases and closure operations

A relational model of data for large shared data banks

E. F. Codd · Communications of the ACM · 1970 · 5.2K citations · Full text

Relational Database, Engineering, Computer Architecture +23

A relational model of data for large shared data banks

E. F. Codd · Communications of the ACM · 1983 · 4.8K citations

Relational Database, Engineering, Computer Architecture +23

Dependency Structures of Data Base Relationships.

William W. Armstrong · IFIP Congress · 1974 · 739 citations

Engineering, Structured Data, Dependency Structures +4

On Dedekind’s problem: The number of monotone Boolean functions

Daniel J. Kleitman · Proceedings of the American Mathematical Society · 1969 · 103 citations · Full text

On Dedekind's Problem: The Number of Monotone Boolean Functions

Daniel J. Kleitman · Proceedings of the American Mathematical Society · 1969 · 41 citations

Circuit Complexity, Boolean Function, Combinatorial Design +2