| 1987 | ||
|---|---|---|
| j1 | P. Chisholm, G. Chen, D. Ferbrache, Peter Thanisch, M. Howard Williams: Coping with Indefinite and Negative Data in Deductive Databases: A Survey. Data Knowl. Eng. 2: 259-284 (1987) | |
| 1 | G. Chen | |
| 2 | D. Ferbrache | |
| 3 | Peter Thanisch | |
| 4 | M. Howard Williams |
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