WASET
    R. Ziaie Moayed and  E. Ghanbari Alamouty,  Numerical Investigation of Soft Clayey Soil Improved by Soil-Cement Columns under Harmonic Load.   journal   = {International Journal of Geotechnical and Geological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2018, vol. 144(12). 749 - 756
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10009877.