Influence of rotor magnet geometry variation on performance characteristics of a fuel-injected four-stroke motorcycle engine using high-ethanol fuel blends. BIS Energy and Engineering, [S. l.], v. 3, p. V326011, 2026. DOI: 10.31603/biseeng.530. Disponível em: https://unimma.press/conference/index.php/biseeng/article/view/530. Acesso em: 31 may. 2026.