1. ITA-Working Group Research: Japan Tunneling Association. pp.1-26, (1988).
2. Chi Zhang, in: The Tunnel, 1997(2): 10-18. In Chinese.
3. Qihu Qian, Chengzhi Qi, in: Essence of the Russia subway construction (China Railway Press, Beijing, 2002). In Chinese.
4. Urban Rapid Rail Transit, 1994, Vol. 2: 42-46. In Chinese.
5. Guihong, in: Highway, 2004(11): 145-148. In Chinese.