Asensio, E. M., G. A. Magallán, G. Amaya, and C. H. de Angelo. “Efficiency and Performance Analysis of Battery-Ultracapacitor Based Semi-Active Hybrid Energy Systems for Electric Vehicles”. IEEE Latin America Transactions, vol. 16, no. 10, May 2019, pp. 2581-90, https://latamt.ieeer9.org/index.php/transactions/article/view/462.