Hernandez, J. C., Mira, M. C., Sen, G., Thomsen, O. C., & Andersen, M. A. E. (2014). Wide Operating Voltage Range Fuel Cell Battery Charger. Elektronika Ir Elektrotechnika, 20(5), 97-103. https://doi.org/10.5755/j01.eee.20.5.7107