共 55 条
- [1] ABITEBOUL S, UNPUB FORMAL SYSTEMS
- [2] Aho A. V., 1979, ACM Transactions on Database Systems, V4, P297, DOI 10.1145/320083.320091
- [3] EQUIVALENCES AMONG RELATIONAL EXPRESSIONS [J]. SIAM JOURNAL ON COMPUTING, 1979, 8 (02) : 218 - 246
- [4] [Anonymous], SYMBOLIC LOGIC MECHA
- [5] Armstrong W. W., 1980, ACM Transactions on Database Systems, V5, P404, DOI 10.1145/320610.320620
- [6] ARMSTRONG WW, 1974, P IFIP C, P580
- [8] Beeri C., 1979, ACM Transactions on Database Systems, V4, P30, DOI 10.1145/320064.320066
- [9] Beeri C., 1980, ACM Transactions on Database Systems, V5, P241, DOI 10.1145/320613.320614
- [10] BEERI C, 1978, 4TH P VLDB, P113