1. EN 1993-1-1. Eurocode 3: Design of Steel Structures - Part 1.1,2009
2. EN 1993-1-12. Eurocode 3: Design of Steel Structures - Part 1–12,2007
3. Experimental Investigation of the Strength of T-1 Steel Columns, Lehigh University;Nishino,1970
4. Evaluation of multiple column curves using the experimental data-base approach;Fukumoto;J. Constr. Steel Res.,1983
5. Tests of high strength steel columns;Rasmussen;J. Constr. Steel Res.,1995