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Edward P. F. Chan Containment and Minimization of Positive Conjunctive Queries in OODB's. [Citation Graph (5, 27)][DBLP] PODS, 1992, pp:202-211 [Conf] Cites:
E. F. Codd Extending the Database Relational Model to Capture More Meaning. [Citation Graph (280, 24)][DBLP] ACM Trans. Database Syst., 1979, v:4, n:4, pp:397-434 [Journal]
E. F. Codd A Relational Model of Data for Large Shared Data Banks. [Citation Graph (580, 0)][DBLP] Commun. ACM, 1970, v:13, n:6, pp:377-387 [Journal]
Edward P. F. Chan Optimal Computation of Total Projections with Unions of Simple Chase Join Expressions. [Citation Graph (8, 31)][DBLP] SIGMOD Conference, 1984, pp:149-163 [Conf] Cites:
E. F. Codd A Relational Model of Data for Large Shared Data Banks. [Citation Graph (580, 0)][DBLP] Commun. ACM, 1970, v:13, n:6, pp:377-387 [Journal]