Kim, Dong-Hyun; Yim, Mun-Hyuk; Chai, Dong-Kyu; Park, Jin-Seok; Yoon, Gi-Wan, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS , v.43, no.4A, pp.1545 - 1550, 2004-04
Kim, JY; Ko Park, Sang-Hee; Jeong, HY; Park, C; Choi, SY; Choi, JY; Han, SH; et al, BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.29, no.4, pp.727 - 728, 2008-04