Shi, Dongyu; Tian, Fang; Li, Tie; Meng, Xianbo; Tang, Junci; Huang, Yanhao; Cui, Dai; Zhang, Yushi; Zeng, Hui: 'Study on quick judgment of power system stability using improved k-NN and LASSO method', The Journal of Engineering, 2019, 2019, (16), p. 686-689, DOI: 10.1049/joe.2018.8359 IET Digital Library, https://digital-library.theiet.org/;jsessionid=sjm7vr0ijz7o.x-iet-live-01content/journals/10.1049/joe.2018.8359