Aoyama, Masahiro; Noguchi, Toshihiko; Motohashi, Yuto: 'Proposal of self-excited wound-field magnetic-modulated dual-axis motor for hybrid electric vehicle applications', IET Electric Power Applications, 2018, 12, (2), p. 153-160, DOI: 10.1049/iet-epa.2017.0285 IET Digital Library, https://digital-library.theiet.org/;jsessionid=5b94prd6rtuf6.x-iet-live-01content/journals/10.1049/iet-epa.2017.0285