Zhao, Zhiyu; Wang, Keyou; Yang, Shihui; Li, Guojie; Zhang, Yin: 'Research on optimal operation of distribution network with electric springs', The Journal of Engineering, 2019, 2019, (16), p. 2953-2956, DOI: 10.1049/joe.2018.8919
IET Digital Library, https://digital-library.theiet.org/;jsessionid=d1edqj3o05bb.x-iet-live-01content/journals/10.1049/joe.2018.8919