1. Energy theorems and structural analysis;Argyris,1960
2. Displacement and equilibrium models in the finite element method;de Veubeke,1965
3. Finite element methods by variational principles with relaxed continuity requirements;Pian,1972
4. Formulations of finite element methods for solid continua;Pian,1971
5. Variational formulations of numerical methods in solid continua;Pian,1971