%0 Journal Article %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %T %D 2012 %R %J Journal of Guilin University of Technology %P 575-579 %V 32 %N 4 %X %U http://manu28.magtech.com.cn/Jweb_gllg/EN/abstract/article_604.shtml