Ke, Xinda; Samaan, Nader; Holzer, Jesse; Huang, Renke; Vyakaranam, Bharat; Vallem, Mallikarjuna; Elizondo, Marcelo; Lu, Ning; Zhu, Xiangqi; Werts, Brant; Nguyen, Quan; Huang, Alex; Makarov, Yuri V.: 'Coordinative real-time sub-transmission volt–var control for reactive power regulation between transmission and distribution systems', IET Generation, Transmission & Distribution, 2019, 13, (11), p. 2006-2014, DOI: 10.1049/iet-gtd.2018.5850
IET Digital Library, https://digital-library.theiet.org/;jsessionid=4bs7prtobt8ie.x-iet-live-01content/journals/10.1049/iet-gtd.2018.5850