Jiří F. Urbánek and  Jiří Barta,  Scenarios of Societal Security and Business Continuity Cycles.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2013, vol. 84(12). 3017 - 3020
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/9996615.