Deeman Yousif Mahmood and  Mohammed Abdullah Hussein,  Feature Based Unsupervised Intrusion Detection.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 93(9). 1665 - 1669
    [viewed 01 June 2020]. Available from: https://publications.waset.org/pdf/9999865.