V. Ngamaramvaranggul and  S. Thenissara,  The Contraction Point for Phan-Thien/Tanner Model of Tube-Tooling Wire-Coating Flow.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2010, vol. 40(4). 483 - 489
    [viewed 20 October 2019]. Available from: https://publications.waset.org/pdf/14037.