1. Buckling analysis of frames using 1 element/member;So;Journal of Constructional Steel Research,1991
2. A self equilibrium element for second-order analysis of semi-rigid jointed frames;Zhou;Journal of Engineering Mechanics, ASCE,1995
3. Refined second order analysis of frames with members under lateral and axial loads;Zhou;Journal of Structural Engineering, ASCE,1996
4. Timoshenko SP, Gere JM. Theory of elastic stability, 2nd ed. New York: McGraw–Hill, 1961.
5. Key PW, Hancock GJ. An experimental investigation of the column behavior of cold formed square hollow sections. Research Report R493, Department of Civil and Mining Engineering, University of Sydney, 1985.