BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY, vol. 45, no. 3, page. 523 - 561, 2008-08
JOURNAL OF GEOMETRIC ANALYSIS, vol. 26, no. 2, page. 1173 - 1185, 2016-04
PACIFIC JOURNAL OF MATHEMATICS, vol. 262, no. 2, page. 365 - 395, 2013-04
Springer Proceedings of Mathematics and Statistics, vol. 144, page. 49 - 55, 2015-08