Yaghobi, Hamid: 'Impact of static synchronous compensator on flux-based synchronous generator loss of excitation protection', IET Generation, Transmission & Distribution, 2015, 9, (9), p. 874-883, DOI: 10.1049/iet-gtd.2014.0859
IET Digital Library, https://digital-library.theiet.org/;jsessionid=2ig7t4gqdeid5.x-iet-live-01content/journals/10.1049/iet-gtd.2014.0859