Vance, John. «Torquewhirl - A Theory to Explain Nonsynchronous Whirling Failures of Rotors With High Load Torque». Rev. Téc. Fac. Ing. Univ. Zulia 60 (1). Accedido abril 15, 2025. https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/4573.