Laboratory setup for studying ultracapacitors in industrial applications [Electronic resource]Roasto, Indrek; Vinnikov, Dmitri; Lehtla, TõnuEPE-PEMC 2008 : 2008 13th International Power Electronics and Motion Control Conference : 1-3 September 2008, Poznan, Poland : proceedings2008 / p. 2034-2037 : ill. [CD-ROM] https://ieeexplore.ieee.org/document/4635561