| |
| 1994 | ||
|---|---|---|
| 2 | EE | Ulla Merz, Roger King: Direct: A Query Facility for Multiple Databases. ACM Trans. Inf. Syst. 12(4): 339-359 (1994) |
| 1992 | ||
| 1 | EE | Ulla Merz, Roger King: DIRECT: A Query Facility for Multiple Databases. SIGMOD Conference 1992: 2 |
| 1 | Roger King | [1] [2] |