1. Refined finite element analysis of linear and non-linear two-dimensional structures;Felippa,1966
2. Introduction to the Finite Element Method;Desai,1972
3. The Finite Element Method in Engineering Science;Zienkiewicz,1971
4. Dead load stresses and the instability of slopes;Goodman;J. Soil Mech. & Foundations Div. ASCE,1963
5. Automatic embankment analysis: equilibrium and instability conditions;Brown;Geotechnique,1966