Journal of Zhejiang University-SCIENCE B
Journal of Zhejiang University-SCIENCE B > 2008 > 9 > 4 > 329-334
Journal of Zhejiang University-SCIENCE B > 2008 > 9 > 8 > 662-666
Journal of Zhejiang University-SCIENCE B > 2008 > 9 > 4 > 329-334
Journal of Zhejiang University-SCIENCE B > 2008 > 9 > 8 > 662-666