Journal of the Korean Physical Society
Journal of the Korean Physical Society > 2013 > 63 > 3 > 563-566
Journal of the Korean Physical Society > 2013 > 63 > 3 > 663-666
Journal of the Korean Physical Society > 2013 > 63 > 3 > 563-566
Journal of the Korean Physical Society > 2013 > 63 > 3 > 663-666