Adrian T. Pleșca,  Thermal Analysis of a Sliding Electric Contact System Using Finite Element Method.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2013, vol. 76(4). 401 - 408
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/6815.