1. 1) Nishino, F.: Mechanics of Continua (II), Structural Mechanics, Shokokusha Publishers, Tokyo, 1984 (in Japanese).
2. 2) Crisfield, M. A.: Solution Procedures for Non-Linear Structural Analysis, Recent Advances in Non-Linear Comp. Mechs. (Eds. Hinton E., et. al.), Pineridge Press, 1982.
3. 3) Itoh, F. and Nogami, K.: On the Tracing Calculation of the Equilibrium Path for Imperfect Systems, Proc. of JSCE, Struct. Eng./Earthq. Eng., Vol. 3, No. 1, Apr. 1986.
4. 4) Ramm, E.: The Riks/Wempner Approach-An Extension of the Displacement Control Method in Nonlinear Analysis, Recent Advances in Non-Linear Comp. Mechs. (Eds. Hinton E., et. al.), Pineridge Press, 1982.
5. 5) Nishino, F., Ikeda, K., Sakurai, T. and Hasegawa A.: A Total Lagrangian Nonlinear Analysis of Elastic Trusses, Proc. of JSCE, Struct. Eng./Earthq. Eng., Vol. 1, No. 1, Apr. 1984.