Temporal Object-Oriented Data Model for the Schema Modification. - Woo Saeng Kim; Duk Chul Chang; Tae Young Lim; Young Ho Shin (DASFAA, 1995)

Synchronization Attributes and Rules of Active Object-Oriented Database for Multimedia Presentation. - Seok Jae Yun; Woo Saeng Kim (DASFAA, 1995)