Research, design and implementation of galvanically isolated impedance-source DC-DC converters = Galvaaniliselt isoleeritud impedantsallikaga alalispingemuundurite uurimine, süntees ja rakendamineChub, Andrii2016 http://digi.lib.ttu.ee/i/?6209 https://www.ester.ee/record=b4601191*est