| 1985 | ||
|---|---|---|
| 3 | EE | Ole Oren: Integrity Constraints in the Conceptual Schema Language SYSDOC. ER 1985: 288-294 |
| 1984 | ||
| 2 | EE | Ole Oren: A Method for Optimization of a Conceptual Model. ICDE 1984: 126-132 |
| 1979 | ||
| 1 | EE | Ole Oren, Frode Aschim: Statistice for the Usage of a Conceptual Data Model as a Basis for Logical Data Base Design. VLDB 1979: 140-145 |
| 1 | Frode Aschim | [1] |