Bondarenko, Y.V., Safronov, P.S., Bondarenko, O.F., Sydorets, V.M. and Rogozina, T.S. 2014. The hybrid energy storages based on batteries and ultracapacitors for contact microwelding. Technology and design in electronic equipment. 4 (Aug. 2014), 33-38. DOI:https://doi.org/10.15222/TKEA2014.4.33.