| Using MedLan to integrate geographical data | 6 | 0.54 | 2000 |
| Applying restriction constraints to deductive databases | 7 | 0.55 | 1997 |
| Supporting reuse and configuration: a port based SCM model | 1 | 0.61 | 1991 |
| Improving integrity constraint checking in deductive databases | 13 | 10.26 | 1988 |
| A flexible environment for program development based on a symbolic interpreter | 5 | 0.66 | 1979 |
