Serkan Yağlı and  Selçuk Dal,  Active Cyber Defense within the Concept of NATO’s Protection of Critical Infrastructures.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2014, vol. 88(4). 909 - 913
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9997871.