1. Bode H. Columns of steel tubular sections filled with concrete-design and application [J]. Achier Stahl Steel, 1973, 11-12: 388-393.
2. Furlong R W. Columns rules of ACI, SSLC, and LRGD compared [J]. Journal of Structural Division, ASCE, 1983, 109(10): 2375-2386.
3. Gardner J, Jacobson E R. Structural behavior of concrete filled steel tubes [J]. ACI Structural Journal, 1967, 64(7): 404-413.
4. Neoga P K, Sen. H K, Chapman J C. Concrete filled tubular steel columns under eccentric loading [J]. The Structural Engineer, 1969, 47(5): 187-195.