editor-in-chief, Gang Tian ; edited by Qing Han & Zhenlei Zhang. editor in chief, Gang Tian ; edited by Qing Han & Zhenlei Zhang. editor in chief, Fang Cai, Peter Nolan, Linggui Wang, Yuyan Zhang. editor in chief, Zhonglin Wang ; editor, Yi Liu, Ze Zhang. editor-in-chief, Li Linna ; translated by Tang Zhenquan and Xu Xianchun.