• Laboratory setup for studying ultracapacitors in industrial applicationsRoasto, Indrek; Vinnikov, Dmitri; Lehtla, TõnuEPE-PEMC 2008 : 2008 13th International Power Electronics and Motion Control Conference : 1-3 September 2008, Poznan, Poland : abstracts2008 / p. 77-78 https://ieeexplore.ieee.org/document/4635561