1. A.J. Baudoin, J.D. Bryant, P.R. Dawson, and D.P. Mika: Numisheet ’96, J.K. Lee, G.K. Kinzel, and R.H. Wagoner, eds., The Ohio State University, Columbus, OH, 1996, pp. 17–24.
2. R. Hill: The Mathematical Theory of Plasticity, Oxford University Press, Oxford, United Kingdom, 1950, p. 318.
3. P.B. Mellor and A. Parmar: in Plasticity of Sheet Metal Forming, Mechanics of Sheet Metal Forming, D.P. Koistinen and N.M. Wang, eds., Plenum Press, New York, NY, 1978, pp. 53–74.
4. R. Hill: J. Mech. Phys. Solids, 1990, vol. 38, pp. 405–17.
5. R. Hill: Int. J. Mech. Sci., 1993, vol. 35, pp. 19–25.