1. Z.Q. Sheng, Formability of Tailor-Welded Strips and Progressive Forming Test, J. Mater. Process. Technol., 2008, 205, p 81–88
2. S.P. Keeler and W.A. Backofen, Plastic Instability and Fracture in Sheets Stretched Over Rigid Punches, Trans. ASM, 1963, 56, p 25–48
3. G.M. Goodwin, Application of Strain Analysis to Sheet Metal Forming Problems in the Press Shop. SAE paper, 1968. Paper No.680093
4. S.S. Hecker, A Simple Forming Limit Curve Technique and Results on Aluminum Alloys, Sheet Metal Forming And Formability, Proceedings of the 7th Biennial Congress of the International Deep Drawing Research Group, Amsterdam, 1972, p 5.1–5.8
5. Z. Marciniak and K. Kuczynski, Limit Strains in the Processes of Stretch-Forming Sheet Metal, Int. J. Mech. Sci., 1967, 9, p 609–620