WASET
    M. Ntšolo and  D. Kalumba and  N. Lefu and  G. Letlatsa,  Numerical Modelling of Shear Zone and Its Implications on Slope Instability at Letšeng Diamond Open Pit Mine, Lesotho.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2017, vol. 124(4). 310 - 319
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10006821.