Guo, Chunyi; Liu, Wei; Zhao, Jian; Zhao, Chengyong: 'Impact of control system on small-signal stability of hybrid multi-infeed HVDC system', IET Generation, Transmission & Distribution, 2018, 12, (19), p. 4233-4239, DOI: 10.1049/iet-gtd.2018.5087
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1nt56upm0g5oz.x-iet-live-01content/journals/10.1049/iet-gtd.2018.5087