1. The finite element method in structural mechanics;Clough,1955
2. The unite element method for the analysis of elastic isotropic and orthotropic slabs;Zienkiewicz,1964
3. Matrix displacement analysis of plates and shells;Argyris;Ing.-Arch.,1966
4. Finite element stiffness matrices for analysis of plate bending;Clough,1965
5. Triangular elements in Bending conforming and non-conforming solutions;Bazeley,1965