Journal of Zhejiang University-SCIENCE A
Journal of Zhejiang University-SCIENCE A > 2006 > 7 > 8 > 1336-1342
Journal of Zhejiang University-SCIENCE A > 2006 > 7 > 8 > 1318-1323
Journal of Zhejiang University-SCIENCE A > 2006 > 7 > 8 > 1336-1342
Journal of Zhejiang University-SCIENCE A > 2006 > 7 > 8 > 1318-1323