Plasma and Fusion Research, vol. 7, page. 2501240-1 - 2501240-6, 2012-10
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 41, no. 3, page. 314 - 321, 2002-09
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 38, no. 1, page. 14 - 18, 2001-01