1. Metal Forming: Mechanics and Metallurgy;Hosford,1993
2. IDDRG;Shi,2006
3. S. Sadagopan, B. Yan, M. Huang, SAE 2004 World Congress & Exhibition, SAE technical paper # 2004-01-0506, 2004.
4. A. Konieczny, International Body Engineering Conference (IBEC), SAE technical paper # 2001-01-3106, 2001.
5. International conference on Microalloyed Steels: Processing, Microstructure, Properties and performance: Association for Iron & Steel Technology;Fekete,2007