1. Theory of Elasticity.;SOUTHWELL,1941
2. Buckling Strength of Metal Structures.;BLEICH,1952
3. The Elastic-Plastic Theory of Compression Members;HORNE;J. Mech. Phys. Solids,1956
4. Plastic Behaviour of Compression Members;ELLIS;J. Mech. Phys. Solids,1958
5. The Buckling of Pin-ended Struts under Axial Load;MERCHANT;Structural Engineer,1949