WASET
    A.H. Akhaveissy,  2D Numerical Analysis of Sao Paulo Tunnel.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2010, vol. 39(3). 65 - 70
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/6237.