Bahar Uyar Düldül. Some special Smarandache curves according to the extended Darboux frame in $E_1^4$. Malaya J. Mat. [Internet]. 2019 Jan. 1 [cited 2024 Jul. 16];7(01):72-5. Available from: https://www.malayajournal.org/index.php/mjm/article/view/677