IEEE ELECTRON DEVICE LETTERS, vol. 29, no. 4, page. 389 - 391, 2008-04
ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 11, no. 1, page. H1 - H1, 2008-01
IEEE ELECTRON DEVICE LETTERS, vol. 30, no. 3, page. 298 - 301, 2009-03