Satyendra Pratap Singh and S. P. Singh, Optimal Placement of Phasor Measurement Units Using Gravitational Search Method. journal = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology. February 2015, vol. 99(3). 307 - 311 [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10000729.