Raphael Zanella,  Finite Element Approximation of the Heat Equation under Axisymmetry Assumption.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2022, vol. 191(11). 103 - 107
    [viewed 02 May 2024]. Available from: https://publications.waset.org/pdf/10012777.