| |
| 1994 | ||
|---|---|---|
| 2 | L. C. Valet, S. A. Roberts: Identifying the Requirement for History of Time-Varying Objects During an Object-Oriented Analysis. OOIS 1994: 378-387 | |
| 1988 | ||
| 1 | Liping Zhao, S. A. Roberts: An Object-Oriented Data Model for Database Modelling, Implementation and Access. Comput. J. 31(2): 116-124 (1988) | |
| 1 | L. C. Valet | [2] |
| 2 | Liping Zhao | [1] |