1. Design criteria for reinforced concrete columns under axial load and biaxial bending;Bresler;ACI Journal,1960
2. Ultimate strength of columns with biaxially eccentric loads;Meek;ACI Journal,1963
3. Failure surfaces for members in compression and biaxial bending;Pannell;ACI Journal,1963
4. Capacity of rectangular columns subject to biaxial bending;Parme;ACI Journal,1966
5. Ultimate strength design charts for columns with biaxial bending;Weber;ACI Journal,1966