WASET
    J. Šejnoha and  D. Jarušková and  O. Špačková and  E. Novotná,  Risk Quantification for Tunnel Excavation Process.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2009, vol. 34(10). 1200 - 1208
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/2919.