The impact of policy measures on promoting the modal shift from road to rail. - Bu-Lim Choi; Kyung-Yong Chung; Kang-Dae Lee (Pers. Ubiquitous Comput., 2014)

Development of indicators of freight stations for digital convergence. - Oh-Keun Ha; Bu-Lim Choi; Younjung Kim; Byungkwan Kim; Kang-Dae Lee (Clust. Comput., 2015)