Abdullah Madhi Alsharif and  Jamal Uddin,  The Influence of Gravity on The Temporal Instability of Viscoelastic Liquid Curved Jets.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 1177 - 1182
    [viewed 21 September 2020]. Available from: https://publications.waset.org/pdf/16487.