Elserougi, Ahmed A.; Massoud, Ahmed M.; Abdelsalam, Ibrahim; Ahmed, Shehab: 'Self-balanced non-isolated hybrid modular DC–DC converter for medium-voltage DC grids', IET Generation, Transmission & Distribution, 2018, 12, (15), p. 3626-3636, DOI: 10.1049/iet-gtd.2017.1813
IET Digital Library, https://digital-library.theiet.org/;jsessionid=h8s6rp0i0rfhh.x-iet-live-01content/journals/10.1049/iet-gtd.2017.1813