On Darboux Helices in Euclidean 3-Space. Global Journal of Science Frontier Research, [S. l.], v. 12, n. F13, p. 73–80, 2012. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/685. Acesso em: 13 aug. 2026.