R. Ziaie Moayed and  M. Mortezaee,  Investigation of Effective Parameters on Pullout Capacity in Soil Nailing with Special Attention to International Design Codes.   journal   = {International Journal of Geotechnical and Geological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2018, vol. 144(12). 744 - 748
    [viewed 24 October 2021]. Available from: https://publications.waset.org/pdf/10009876.