Query Optimization in Object-Oriented Knowledge Bases. - Phillip C.-Y. Sheu; Rangasami L. Kashyap; Song Bong Yoo (Data Knowl. Eng., 1989)

A knowledge-based software environment (KBSE) for designing concurrent processes. - Phillip C.-Y. Sheu; Song Bong Yoo (Int. J. Hum. Comput. Interact., 1989)

Concurrency control in deductive databases and object bases. - Song Bong Yoo; Minjae Yu; Phillip C.-Y. Sheu (Data Knowl. Eng., 1992)

Evaluation and Optimization of Query Programs in an Object-Oriented and Symbolic Information System. - Song Bong Yoo; Phillip C.-Y. Sheu (IEEE Trans. Knowl. Data Eng., 1993)

A Knowledge-based Program Transformation System - Phillip C.-Y. Sheu; Song Bong Yoo (CAiSE, 1994)

A deductive program transformation system. - Phillip C.-Y. Sheu; Song Bong Yoo (SEKE, 1994)