1. 2) Von. Kármán, T. Sechler, E. E. and Donnell, L. H. : The Strength of Thin Plate in Compression, Transactions ASME, vol. 54, APM 54-5, 1932
2. 3) Winter, G. : Strength of Thin Steel Compression Flanges, Journal of Structural Engineering, ASCE, pp. 527-576, 1946
3. 4) Lind, N. C. Ravindra, M.K. Schorn, G.: Empirical Effective Width Formula, Proc. of ASCE, ST Div., Vol. 102, No. ST9, pp. 1741-1751, 1976
4. 6) North American Specification for the Design of Cold-Formed Steel Structural Members 2007 Edition, American Iron and Steel Institute, 2007
5. 7) Timoshenko, S. Gere, J. : Theory of elastic stability. McGraw-Hill, 1961