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Raymond F. Boyce, Donald D. Chamberlin, W. Frank King III, Michael Hammer. Specifying Queries as Relational Expressions: The SQUARE Data Sublanguage. Communications of the ACM, 18(11):621-628, 1975. [doi]
Possibly Related PublicationsThe following publications are possibly variants of this publication: SEQUEL: A Structured English Query LanguageDonald D. Chamberlin, Raymond F. Boyce. SIGMOD 1974: 249-264 [doi] Specifying Queries as Relational ExpressionsRaymond F. Boyce, Donald D. Chamberlin, Michael Hammer, W. Frank King III. sigir 1973: 31-47 Specifying Queries as Relational ExpressionsRaymond F. Boyce, Donald D. Chamberlin, W. Frank King III, Michael Hammer. ds 1974: 169-178
The following publications are possibly variants of this publication: