1. Continua and discontinua;Argyris,1965
2. The complete analogy between the matrix equations and the continuous field equations of structural analysis;Besseling,1963
3. Integrated Theory of Finite Element Methods;Robinson,1973
4. Kinematic and dynamic analysis of mechanisms, a finite element approach;van der Werff,1977
5. Dynamics of flexible mechanisms;van der Werff,1984