1. Materials testing machines and force verification equipment–Part 2: Specification for the grading of equipment used for the verification of the forces applied by materials testing machines;BS1610,1985
2. Computational methods for the solution of engineering problems;Brebbia,1978
3. Three-dimensional problems of the theory of elasticity;Luré,1964
4. Formulation and experimental verification of an axisymmetric finite-element structural analysis;Mitchell;J Res NBS C,1971
5. PAFEC 75. Pafec Ltd., Nottingham, England.