IYIGÜN, E. On Darboux vector in Lorentzian 5-space. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 5, p. 635–641, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1583. Acesso em: 11 apr. 2025.