Disaster Management Design in Tunnels for u-City Embodiment. - Nam-Kyun Kim; Mu-wook Pyeon; Jae-sun Park; Kyu-Shick Lee; Byung-Sun Yoo (J. Digit. Content Technol. its Appl., 2008)

A Study on USN Management for Tunnel Entry Slope. - Byung-Sun Yoo; Yong-Dae Park; Kyu-Shick Lee; Nam-Kyun Kim; Mu-wook Pyeon (J. Convergence Inf. Technol., 2009)