소개글
Author: Choi HongKyw, Jeong Hu Young, Lee Dae-Sik, Choi Sung-Yool, Choi Choon-Gi
Organization: Choi HongKyw; Jeong Hu Young; Lee Dae-Sik; Choi Sung-Yool; Choi Choon-Gi
Publish: Carbon letters Volume 14, Issue3, p186~189, 31 July 2013