U. C. De, M. Turan, and A. Yildiz, “On 3-dimensional f-Kenmotsu manifolds and Ricci solitons”, Ukr. Mat. Zhurn., vol. 65, no. 5, pp. 620–628, May 2013, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2446