Annotation Repositioning Methods in the XML Documents: Context-Based Approach. - Won-Sung Sohn; Myeong-Cheol Ko; Hak-Keun Kim; Soon-Bum Lim; Yoon-Chul Choy (ICCSA (4), 2004)

Guided Navigation Techniques for 3D Virtual Environment Based on Topic Map. - Hak-Keun Kim; Teuk-Seob Song; Yoon-Chul Choy; Soon-Bum Lim (ICCSA (1), 2005)

3D Virtual Environment Navigation Aid Techniques for Novice Users Using Topic Map. - Hak-Keun Kim; Teuk-Seob Song; Yoon-Chul Choy; Soon-Bum Lim (IEICE Trans. Inf. Syst., 2006)