Filippo Ranalli and  Forest Flager and  Martin Fischer,  A Ground Structure Method to Minimize the Total Installed Cost of Steel Frame Structures.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 134(2). 160 - 168
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10008573.