G. Özkan and A. Yücesan, “Generalized relaxed elastic line on an oriented surface”, Ukr. Mat. Zhurn., vol. 64, no. 8, pp. 1121–1131, Aug. 2012, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2645