• An improved interface converter for a medium-power wind-hydrogen systemVinnikov, Dmitri; Hõimoja, Hardi; Andrijanovitš, Anna; Roasto, Indrek; Lehtla, Tõnu; Klytta, Marius2nd International Conference on Clean Electrical Power Renewable Energy Resources Impact : Capri (Italy) June 9-11, 20092009 / p. 426-432 : ill https://ieeexplore.ieee.org/document/5212019