Uyar Düldül, Bahar, and Mustafa Düldül. “Extended Darboux Frame Curvatures of Frenet Curves Lying on Parametric 3-Surfaces”. Kuwait Journal of Science 46, no. 1 (February 21, 2019). Accessed May 3, 2026. https://journalskuwait.org/kjs/index.php/KJS/article/view/4391.