WASET
    A. Sedky and  E. El-Suheel,  Nonlinear Conduction in Pure and Doped ZnO Varistors.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2012, vol. 65(5). 496 - 502
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/1787.