BEKTAS, Mehmet, Mihriban KULAHCI, and Münevver YILDIRIM YILMAZ. “The Characterizations of the Curves in a 3-Dimensional Lightlike Cone”. Walailak Journal of Science and Technology (WJST) 12, no. 11 (December 11, 2014): 1055–1062. Accessed April 30, 2024. https://wjst.wu.ac.th/index.php/wjst/article/view/1120.