Tomasz M. Jankowski,  The Boundary Theory between Laminar and Turbulent Flows.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2013, vol. 74(2). 232 - 240
    [viewed 19 October 2021]. Available from: https://publications.waset.org/pdf/1425.