SCIENTIFIC REPORTS, vol. 3, page. 2700, 2013-09-19
PHYSICAL REVIEW LETTERS, vol. 110, no. 24, page. 247201 - 247201, 2013-06-11
ACS NANO, vol. 7, no. 2, page. 1533 - 1541, 2013-02
NANOSCALE, vol. 5, no. 2, page. 548 - 551, 2013-01