1. Hirt MA, Bez R, Nussbaumer R. Construction métallique: Notions fondamentales et méthodes de dimensionnement (Traité de Génie Civil volume 10). Presses Polytechiques et Universitaires Romandes; 2006.
2. Plastic theory of structures;Horne,1979
3. Plasticity theory;Lubliner,1990
4. ADINA system;Bathe,2010
5. A formulation of general shell elements—the use of mixed interpolation of tensorial components;Bathe;Int J Numer Methods Eng,1986