Hilal A. Fadhil and  Thanaa Hussein Abd and  Hamza M. R. Al-Khafaji and  S. A. Aljunid,  WDM and OCDMA Systems under MAI Effects: A Comparison Analysis.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2012, vol. 64(4). 372 - 375
    [viewed 09 April 2020]. Available from: https://publications.waset.org/pdf/14704.