JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 55, no. 6, page. 2460 - 2464, 2009-12
PHYSICAL REVIEW B, vol. 80, no. 23, page. 235312 - 235312, 2009-12
CHEMPHYSCHEM, vol. 10, no. 2, page. 334 - 336, 2009-02-02
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 54, no. 2, page. 668 - 672, 2009-02