1. Thin walled elastic beams;Vlasov,1961
2. Theory of elastic stability;Timoshenko,1961
3. Buckling strength of metal structures;Bleich,1952
4. Principle of structural stability theory;Chajes,1952
5. Goodier JN. The buckling of compressed bars by torsion and flexure. Bulletin 27. Cornell University Engineering Experimental Station; 1941.