Zhang, X.-P.; Xue, C.-F.; Godfrey, K.R.: 'Modelling of the static synchronous series compensator (SSSC) in three-phase Newton power flow', IEE Proceedings - Generation, Transmission and Distribution, 2004, 151, (4), p. 486-494, DOI: 10.1049/ip-gtd:20040473
IET Digital Library, https://digital-library.theiet.org/;jsessionid=c7ip0hbmbvt4.x-iet-live-01content/journals/10.1049/ip-gtd_20040473