WASET
    M. H. Lai and  D. S. Gunawardena and  K. S. Lim and  H. Ahmad,  Cooling-Rate Induced Fiber Birefringence Variation in Regenerated High Birefringent Fiber.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 108(12). 730 - 733
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10003035.