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2. and , ‘The finite element method in solid mechanics’, in vNumerical Solution of Field Problems in Continuum Physics (Ed. G. Birkhoff and R. S. Varga), SIAM-AMS Proc. II, Am. Math. Soc., Providence, R.I., 210-252 (1969).
3. Structural eigenvalue problems - elimination of unwanted variables
4. Application of generalized constraints in the stiffness method of structural analysis.
5. Coupling of substructures for dynamic analyses.