Andrii Shalaginov and  Katrin Franke and  Xiongwei Huang,  Malware Beaconing Detection by Mining Large-scale DNS Logs for Targeted Attack Identification.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2016, vol. 112(4). 743 - 755
    [viewed 21 November 2019]. Available from: https://publications.waset.org/pdf/10004242.