Wu, F.; Zhang, X.-P.; Godfrey, K.; Ju, P.: 'Small signal stability analysis and optimal control of a wind turbine with doubly fed induction generator', IET Generation, Transmission & Distribution, 2007, 1, (5), p. 751-760, DOI: 10.1049/iet-gtd:20060395
IET Digital Library, https://digital-library.theiet.org/;jsessionid=guy79xde27uw.x-iet-live-01content/journals/10.1049/iet-gtd_20060395