by Ding Cong ; translated by Ma Mingtong by Chsrles Rist ; translated by Jane Degras. Zhou Aiming ; translated by Wang Guozhen. by Zhao Qizheng ; translated by Wang Jun. by Felix Klein ; translated by M. Ackerman. by Zhang Xiping ; [translated by Wen Jingen]. by Cui Lili ; [translated by Xulin] by J.E. Pin ; translated by A. Howie. Zhang Baijia ; translated by Zhang Yuxian. by Haiping Qiu ; translated by Xiaoli Jiang.