This author has not been identified. Look up 'Guhyun Kim' in GoogleThis author has not been identified. Look up 'Vladimir Kornijcuk' in GoogleThis author has not been identified. Look up 'Jeeson Kim' in GoogleThis author has not been identified. Look up 'Dohun Kim' in GoogleThis author has not been identified. Look up 'Cheol Seong Hwang' in GoogleThis author has not been identified. Look up 'Doo Seok Jeong' in Google