WASET
    Huan Xiong and  Ming Chen,  Towards an AS Level Network Performance Model.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2008, vol. 18(6). 2151 - 2156
    [viewed 04 May 2024]. Available from: https://publications.waset.org/pdf/362.