ÖZKAN TÜKEL, G.; TURHAN, T. Contribution to null Killing magnetic trajectories. International Journal of Maps in Mathematics, [S. l.], v. 3, n. 2, p. 129–138, 2020. Disponível em: http://journalmim.com/index.php/journalMIM/article/view/68. Acesso em: 7 may. 2024.