This author has not been identified. Look up 'MinKeun Chung' in GoogleThis author has not been identified. Look up 'Min Soo Sim' in GoogleThis author has not been identified. Look up 'Jaeweon Kim' in GoogleThis author has not been identified. Look up 'Dong Ku Kim' in GoogleThis author has not been identified. Look up 'Chan-Byoung Chae' in Google