1. N.M. Wang and B. Budiansky, “Analysis of Sheet Metal Stamping by a Finite Element Method,” ASME Trans. J. Appl. Mech., 45 (1978), pp. 73–82.
2. N.M. Wang and S.C. Tang, eds., Computer Modeling of Sheet Metal Forming Process (Warrendale, PA: TMS, 1985).
3. S.C. Tang, J. Gress, and P. Ling, “Sheet Metal FOrming Modeling of Automobile Body Panels” (Paper presented at IDDRG 15th Biennial Congress, Dearborn, MI, 16–18 May 1988).