1. Clough R, Johnston S. Effect of stiffness degradation on earthquake ductility requirements. Trans. Japan Earthquake Eng. Symp., Tokyo 1966, 195–198
2. Analysis of damaged concrete frames for cyclic loads;Meyer;Earthquake Engineering and Structural Dynamics,1983
3. Kaba S, Mahin SA. Refined modeling of reinforced concrete columns for seismic analysis, Report No. UCB/EERC 84-03, Earthquake Engrg. Res. Ctr., University of California, Berkeley, California, 1984
4. Powell GH. DRAIN-2DX: Element description and user guide, Report No. UCB/SEMM 93-18, Deprtment of civil Engineering, University of California, Berkeley, California, 1993
5. The effect of transverse shear deformation on the bending of the elastic plates;Reissner;J. Appl. Mech,1945