Mohammad Hasan Raouf and  Ebrahim Rasooli Anarmarzi and  Hamid Lesani and  Javad Olamaei,  Power System Damping Using Hierarchical Fuzzy Multi- Input Power System Stabilizer and Static VAR Compensator.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 344 - 350
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/7203.