WASET
    M. De Filippo and  J. S. Kuang,  Concept of a Pseudo-Lower Bound Solution for Reinforced Concrete Slabs.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 135(3). 361 - 365
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10008919.