ANEX: An Answer Extraction System based on Conceptual Graphs. - Gi-Chul Yang; Haeng Un Oh (IKE, 2005)

CARA-D: Data Elements for a Computer based Cancer Risk Assessment System. - Gi-Chul Yang; Haeng Un Oh (ECEH, 2007)

Implementation of a Personal Authentication System T-Time. - Gi-Chul Yang; Haeng Un Oh (SOCA, 2019)