ÖZKAN, G.; YÜCESAN, A. Generalized relaxed elastic line on an oriented surface. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 8, p. 1121–1131, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2645. Acesso em: 5 dec. 2025.