1. The Finite Element Method in Structural and Continuum Mechanics;Zienkiewicz,1967
2. Rashid, Y. R., “On Computational Methods in Solid Mechanics and Stress Analysis,” Conf. on Effective Use of Comp. in the Nuclear Industry, April 21–23, 1969, Knoxville.
3. “Approximation by Hill Functions,”;Babuška,1970
4. “Error Bounds for Finite Element Method,”;Babuška,1969
5. “The Rate of Convergence for the Finite Element Method,”;Babuška,1970