S. M. Abdur Razzak and  M. A. Rashid and  Y. Namihira and  A. Sayeem,  Group Velocity Dispersion Management of Microstructure Optical Fibers.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 1177 - 1181
    [viewed 25 January 2020]. Available from: https://publications.waset.org/pdf/12068.