G├╝lfem I. Alptekin and  S. Emre Alptekin,  A Quality Optimization Approach: An Application on Next Generation Networks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2010, vol. 48(12). 1925 - 1930
    [viewed 22 January 2020]. Available from: https://publications.waset.org/pdf/12853.