Applying Intensional Query Processing Techniques to Object-Oriented Database Systems. - Yang Hee Kim; Hyoung-Joo Kim (DASFAA, 1993)

The Object-Oriented Design of KROSS: An Object-Based Spatial Database System. - Yang Hee Kim; Myeong Sun Kim; Seog-Hyong Kwon; Shang-Sung Jeong (DEXA, 1996)

Two Levels of Spatial Data Modeling for an Object-Oriented Spatial Database System. - Yang Hee Kim (OOIS, 1997)