Conference paper
A data base sublanguage founded on the relational calculus
E.F. Codd
SIGFIDET 1971
Paper
Data models in database management
Abstract
No abstract available.
Related
E.F. Codd, C.J. Date
SIGFIDET 1974
E.F. Codd
SIGMOD Record
Conference paper
Data base management
E.F. Codd
National Computer Conference AFIPS 1975