1. Static and dynamic analysis of plane and space frames with axial constraints;Eisenberger,1980
2. Dynamics of frames with axial constraints;Weaver;J struct. Div. ASCE,1983
3. Stability of plane frames omitting axial strains;Eisenberger;J. struct. Div. ASCE,1985
4. Description of stress-strain curves by three parameters;Ramberg,1943
5. An elastic-plastic analysis by computer for framed structures loaded up to collapse;Jennings;Struct. Eng.,1965