Li, Chengjie
Wurst, Klaus
Feng, Yaqing
Kräutler, Bernhard
Funding for this research was provided by:
Austrian Academic Cooperation and Mobility Unit (WTZ CN 14/2007)
Tianjin International Cooperation Program of Science and Technology (08ZCGHHZ00400)
Austrian National Science Foundation (I-563, P-28522)