Journal of the Korean Statistical Society
Journal of the Korean Statistical Society > 2016 > 45 > 2 > 199-209
Journal of the Korean Statistical Society > 2016 > 45 > 4 > 505-517
Journal of the Korean Statistical Society > 2016 > 45 > 2 > 199-209
Journal of the Korean Statistical Society > 2016 > 45 > 4 > 505-517