BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 31, no. 8, page. 2293 - 2298, 2010-08-20
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 151, no. 2, page. F11 - F16, 2004-02
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, vol. 22, no. 6, page. 2799 - 2803, 2004-11
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 37, no. 12, page. 9925 - 9932, 2012-06