A fuzzy representation of data for relational databases

A relational model of data for large shared data banks

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

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A relational model of data for large shared data banks

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

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Similarity relations and fuzzy orderings

Lotfi A. Zadeh · Information Sciences · 1971 · 2.6K citations

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A definition of a nonprobabilistic entropy in the setting of fuzzy sets theory

Aldo de Luca, S. Termini · Information and Control · 1972 · 2.3K citations

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An introduction to database systems

Ben Shneiderman · Information Processing & Management · 1976 · 1K citations

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