Soykan, Yüksel, and Erkan Taşdemir. “Generalized Tetranacci Hybrid Numbers”. Annales Mathematicae Silesianae 35, no. 1 (October 6, 2020): 113–130. Accessed April 26, 2025. https://journals.us.edu.pl/index.php/AMSIL/article/view/13478.