Narendra Kumar and  Sanjiv Kumar,  Incorporation of SVS CBVLC Supplementary Controller for Damping SSR in Power System .   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 90(6). 981 - 986
    [viewed 14 December 2019]. Available from: https://publications.waset.org/pdf/9999223.