Journal of the Korean Physical Society
Journal of the Korean Physical Society > 2013 > 63 > 3 > 716-718
Journal of the Korean Physical Society > 2013 > 63 > 3 > 773-777
Journal of the Korean Physical Society > 2013 > 63 > 3 > 716-718
Journal of the Korean Physical Society > 2013 > 63 > 3 > 773-777