APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol. 93, no. 1, page. 147 - 151, 2008-10
JOURNAL OF CATALYSIS, vol. 218, no. 1, page. 209 - 219, 2003-08-15
SOLID STATE IONICS, vol. 179, no. 27-32, page. 1372 - 1376, 2008-09-30