YÜKSEL SOYKAN. On the Sums of Squares of Generalized Tribonacci Numbers: Closed Formulas of Σn k=0 xkW2. Archives of Current Research International, [S. l.], v. 20, n. 4, p. 22–47, 2020. DOI: 10.9734/acri/2020/v20i430187. Disponível em: https://journalacri.com/index.php/ACRI/article/view/395. Acesso em: 21 sep. 2025.