TUẤN. ANALYSIS OF THE EFFECT OF SLOT-OPENNING WIDTH AND MAGNET LENGTH ON THE COGGING TORQUE IN THE EXTERNAL ROTOR BLDC MOTOR USING IN MILITARY APPLICATION. . Journal of Military Science and Technology, [S. l.], n. 70, p. 70–76, 2020. Disponível em: https://jmst.mod.gov.vn/index.php/jmst/article/view/112. Acesso em: 26 jan. 2026.