, B. S. J. M. S. P. F. “Flexural Rigidity EI of RC Slender Columns under Axial Force and Bending of Rectangular Section for the Moment Magnifier Meted”. Hormigón Y Acero, Vol. 55, no. 231, Jan. 2004, https://www.hormigonyacero.com/index.php/ache/article/view/206.