Journal of Shanghai University(Natural Science Edition) ›› 2012, Vol. 18 ›› Issue (3): 265-270.doi: 10.3969/j.issn.1007-2861.2012.03.010
• Mathematics.Physics and Chemistry • Previous Articles Next Articles
LIN He-tong,GONG Yun-lu,QIN Dian-gang,FENG Tie-nan,WANG Yi-fei