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 | 1989 | |
|---|---|---|
| 3 |      | Le Van Bao, Ho Thuan: Key ad superkey for a closure function. Acta Cybern. 9(1): 73-88 (1989) |
| 1987 | ||
| 2 | | János Demetrovics, Ho Thuan, Nguyen Xuan Huy, Le Van Bao: Translation of Relation Schemes, Balanced Relation Schemes and the Problem of Key Representation. Elektronische Informationsverarbeitung und Kybernetik 23(2/3): 81-97 (1987) |
| 1985 | ||
| 1 | | Ho Thuan, Le Van Bao: Some results about key of relational schemas. Acta Cybern. 7(1): 99-113 (1985) |
| 1 | Le Van Bao | [1] [2] [3] |
| 2 | János Demetrovics | [2] |
| 3 | Nguyen Xuan Huy | [2] |