ADVANCED MATERIALS, vol. 19, no. 5, page. 678 - 682, 2007-03-05
ADVANCED FUNCTIONAL MATERIALS, vol. 18, no. 4, page. 560 - 565, 2008-02-22
APPLIED PHYSICS LETTERS, vol. 90, no. 13, page. 132106 - 132106, 2007-03-26