1. (1) Nagarajan, S. and Popov, E. P., Plastic and Viscoplastic Analysis of Axisymmetric Shells, Int. J. Solids and Struct., Vol. 11 (1975), p. 1.
2. (2) Kanchi, M. B., Zienkiewicz, O. C. and Owen, D. R. J., The Visco-Plastic Approach to Problems of Plasticity and Creep Involving Geometric Non-Linear Effects, Int. J. for Numerical Methods in Eng., Vol. 12 (1978), p. 169.
3. (3) Tao, K. and Takezono, S., Elasto/Visco-Plastic Analysis of Axisymmetrical Shells under Asymmetrical Loading, Trans. 5th Int. Conf. Struct. Mech. in Reactor Technol., Vol. M (1979), M 4/8.
4. (4) Atkatsh, R. S., Bieniek, M. P. and Sandler, I. S., Theory of Visco-Plastic Shells for Dynamic Response, Trans. ASME, J. Appl. Mech., Vol. 50, No. 1 (1983), p. 131.
5. (5) Tao, K. and Takezono, S., Analysis of Elasto/ Visco-Plastic Dynamic Response of General Thin Shells by Means of Overlay Model, JSME Int. J., Ser. I, Vol. 33, No. 3 (1990), p. 326.