Zhao, Yi; Yuan, Zhichang; Lu, Chao; Zhang, Guoli; Li, Xiu; Chen, Ying: 'Improved model-free adaptive wide-area coordination damping controller for multiple-input–multiple-output power systems', IET Generation, Transmission & Distribution, 2016, 10, (13), p. 3264-3275, DOI: 10.1049/iet-gtd.2016.0069
IET Digital Library, https://digital-library.theiet.org/;jsessionid=4r5ll906odeoa.x-iet-live-01content/journals/10.1049/iet-gtd.2016.0069