Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
E. F. Codd. Relational Database: A Practical Foundation for Productivity. Communications of the ACM, 25(2):109-117, 1982. [doi]
Abstract is missing.