: 'Guest Editorial: Electric and Hybrid Electric Propulsion for Aviation', IET Electric Power Applications, 2018, 12, (6), p. 737-738, DOI: 10.1049/iet-epa.2018.0188 IET Digital Library, https://digital-library.theiet.org/;jsessionid=cbd7rrotieng.x-iet-live-01content/journals/10.1049/iet-epa.2018.0188