R. Ziaie Moayed  and  S. Tamassoki  and  E. Izadi,  Numerical Modeling of Direct Shear Tests on Sandy Clay.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 27 - 31
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/9588.