1. ISO/DIS 10721, Steel structures—materials and design (this draft was approved on 2 December 1994 as an international standard).
2. Compression test on concrete-filled circular steel tube columns,1993
3. Buckling behavior of concrete-filled circular steel tubular columns using lightweight concrete;Masuo,1991
4. Experimental study on buckling strength of composite columns having steel tube;Sasaki,1984
5. SSRC, a specification for the design of steel-concrete composite columns;Engineering Journal, AISC,1979