ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 9, no. 6, page. G191 - G194, 2006-01
ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 12, no. 5, page. B65 - B68, 2009-01
ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 3, no. 1, page. 53 - 55, 2000-01