SOLID STATE IONICS, vol. 180, no. 11-13, page. 839 - 842, 2009-06-22
ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 12, no. 4, page. B57 - B60, 2009-01
JOURNAL OF POWER SOURCES, vol. 180, no. 1, page. 195 - 198, 2008-05-15