CALCULATION OF COGGING TORQUE IN HYBRID STEPPING MOTORS. Nigerian Journal of Technology, [S. l.], v. 32, n. 2, p. 273–278, 2013. DOI: 10.4314/njt.322.658. Disponível em: https://nijotech.com/index.php/nijotech/article/view/658. Acesso em: 21 apr. 2026.