Adel Belal and  Sameh Aboelsoud and  Mohy Elmashad and  Mohammed Abdelmonem,  Improvement of Soft Clay Using Floating Cement Dust-Lime Columns .   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 146(2). 80 - 85
    [viewed 15 December 2019]. Available from: https://publications.waset.org/pdf/10010049.