Yao, Ruidi; Zheng, Zedong: 'Design and control of a SiC-based three-stage AC to DC power electronic transformer for electric traction applications', The Journal of Engineering, 2019, 2019, (16), p. 2947-2952, DOI: 10.1049/joe.2018.8512
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1ursxecxq005v.x-iet-live-01content/journals/10.1049/joe.2018.8512