MACROMOLECULAR RESEARCH, vol. 16, no. 8, page. 686 - 694, 2008-12
NANOTECHNOLOGY, vol. 17, no. 14, page. 3490 - 3498, 2006-07-28
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 53, no. 6, page. 3758 - 3762, 2008-12
APPLIED PHYSICS LETTERS, vol. 95, no. 13, page. 132901 - 132901, 2009-09-28
NATURE, vol. 449, no. 7160, page. 356 - 360, 2007-09-20