Development of the Electromagnetic Wave Absorber for 94 GHz Radar Sensors Using Permalloy. - Chang-Mook Choi; Dong Il Kim; Rui Li; Kwang-Soob Ko (J. Inform. and Commun. Convergence Engineering, 2006)

Mathematical Algorithms for Two-Dimensional Positioning Based on GPS Pseudorange Technique. - Kwang-Soob Ko; Chang-Mook Choi (J. Inform. and Commun. Convergence Engineering, 2010)