Smko Zangana and  Ergun Ercelebi,  Enhance Power Quality by HVDC System, Comparison Technique between HVDC and HVAC Transmission Systems.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 110(2). 271 - 279
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10003808.