1. European Recommendations for Plastic Collapse Design of Steel Structures;European Convention for Constructional Steelwork,1975
2. Thin-Walled Elastic Bars;Vlassov,1940
3. Israel program for Scientific Translation;Schechtman,1961
4. Theory of bending, torsion and buckling of thin-walled members of open cross section;Timoshenko;J. Franklin Instit.,1945
5. Restrained columns under biaxial bending;Vinnakota,1972