WASET
    Vinod Tejwani and  Bhavik Suthar,  Energy Management System in Fuel Cell, Ultracapacitor, Battery Hybrid Energy Storage.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 108(12). 1492 - 1500
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10003953.