WASET
    Jakub Kraus and  Vladimír Plos and  Peter Vittek,  “Friction Surfaces” of Airport Emergency Plan.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2015, vol. 100(4). 1138 - 1142
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10000963.