Codd, E. F. A relational model of data for large shared data banks. (English) Zbl 0207.18003 Commun. ACM 13, 377-387 (1970). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 ReviewsCited in 314 Documents MSC: 68P15 Database theory 68P05 Data structures Software:QOCA PDFBibTeX XMLCite \textit{E. F. Codd}, Commun. ACM 13, 377--387 (1970; Zbl 0207.18003) Full Text: DOI