K. Orozović and  B. Balon,  De Broglie Wavelength Defined by the Rest Energy E0 and Its Velocity.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2021, vol. 175(7). 82 - 85
    [viewed 20 September 2021]. Available from: https://publications.waset.org/pdf/10012121.