APPLIED PHYSICS LETTERS, vol. 95, no. 24, page. 242902-1 - 242902-3, 2009-12-14
CHEMISTRY OF MATERIALS, vol. 21, no. 21, page. 5050 - 5057, 2009-11-10
SOLID STATE COMMUNICATIONS, vol. 149, no. 43-44, page. 1971 - 1973, 2009-11