Kumar, Nayan; Saha, Tapas Kumar; Dey, Jayati: 'Control, implementation, and analysis of a dual two-level photovoltaic inverter based on modified proportional–resonant controller', IET Renewable Power Generation, 2018, 12, (5), p. 598-604, DOI: 10.1049/iet-rpg.2017.0635
IET Digital Library, https://digital-library.theiet.org/;jsessionid=gvmjnjksspz0.x-iet-live-01content/journals/10.1049/iet-rpg.2017.0635