1. R. Venkata Rao, Evaluation of metal stamping layouts using an analytic hierarchy process method, J. Mat. Proc. Tec., 152:71-76,2004.
2. Regulation (EC) No 443/2009 of the European Parliament and of the Council, Official Journal of the European Union, 23rd April 2009.
3. C. A. Ungureanu, S. Das, I. S. Jawahir, Life-cycle cost analysis: aluminium versus steel in passenger cars, in S. K. Das, W. Yin, editors. Aluminium alloys for transportation, packaging , aerospace and other applications, Pages 11-24, TMS (The Minerals, Metals & Materials Society), 2007.
4. L. Geng, R. H. Wagoner, Role of plastic anisotropy and its evolution on springback, I. J. Mech. Sci, 44:123-148, 2002.
5. G. Dieter, Mechanical Metallurgy, 2nd Edition, McGraw-Hill, 1981.