Pereira, V. G. F., & Ribeiro Júnior, S. (2026). Hybrid PEM Fuel Cell and Ultracapacitor Propulsion System for Energy-Efficient Vehicles. Semina: Ciências Exatas E Tecnológicas, 47, e54642. https://doi.org/10.5433/1679-0375.2026.v47.54642