WASET
    H. R. Kazemi Nia and  A. Yeganeh Fallah,  Bending Gradient Coefficient Correction for I-Beams.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2009, vol. 34(10). 394 - 396
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/11618.