[1] Oden,J.T.,Finite Element of Nonlinear Continua,McGraw-Hill(1972).
[2] Spilker,R.L.,Improved hybrid-stress axisymmetric elements including behaviour for nearly incompressible materials,Int.J.Num.Meth.Engng.,17(1981).
[3] Scharnhorst,T,and T.H H Pian,Finite element analysis of rubber-like materials by a mixed model,Int.J.Num.Meth.Engng.,12(1978).
[4] Fan Jia-qi,A finite element analysis for nonlinear rubber-like materials based on incremental principle,The Second National Conference on Computational Mechanics,Paper No.033,Shanghai,China(1986).(in Chinese)
[5] Pian,T.H.H.,Sclected Works of the Finite Element Method,The National Defence Industry Press,China(1980).(Chinese version)