1. Minggui Dong: Electric Locomotives & Mass Transit Vehicles Vol. 2(2006), pp.56-58, in Chinese.
2. Qi Xian and Wentian Nie: Jiangsu Ship Vol. 24(2007), pp.28-29, in Chinese.
3. Boshi Cheng: Electric drive control system (China Machine Press, Beijing 2003), in Chinese.
4. Chengyuan Wang and Jiakuan Xia: Motor modern control technology(China Machine Press, Beijing 2006), in Chinese.