WASET
    Muhammad E. Rahman and  Trevor Orr,  Finite Element Modelling of Ground Vibrations Due to Tunnelling Activities.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 149 - 155
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/15809.