1. J.T. Du: Chinese Control and Decision Conference, CCDC (2010), pp.3777-3780.
2. J.F. Lin, S.J. Yuan and G. Liu: Material Science and Technology, Vol. 12 (2005) No. 5, pp.33-35. (In Chinese).
3. A.Y. Yuan, Z.T. Wang and H.C. Liang: Mechanical Engineering and Automation, Vol. 4 (2006), pp.1-4. (In Chinese).
4. Z.K. Tian: Mould Industry, Vol. 5 (2005), pp.21-25. (In Chinese).
5. S.J. Yuan: Hydroforming Technology of Modern (National Defence Industry Publications, China 2009).